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Publication numberUS20030155761 A1
Publication typeApplication
Application numberUS 10/125,828
Publication dateAug 21, 2003
Filing dateApr 18, 2002
Priority dateFeb 15, 2002
Also published asUS6550812, US6607216
Publication number10125828, 125828, US 2003/0155761 A1, US 2003/155761 A1, US 20030155761 A1, US 20030155761A1, US 2003155761 A1, US 2003155761A1, US-A1-20030155761, US-A1-2003155761, US2003/0155761A1, US2003/155761A1, US20030155761 A1, US20030155761A1, US2003155761 A1, US2003155761A1
InventorsJohn Stenger, Ed Podosek, Christine Hibberd, Terri McKelvaine, Arthur Castillo
Original AssigneeAvery Dennison Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Magnetic write/erase binder
US 20030155761 A1
Abstract
A binder, such as a three ring binder, is provided with a magnetizable panel on the front cover of the binder and with a stylus and a permanent magnet erasing device mounted onto the binder. The magnetizable panel may be inset into the cover of the binder, or it may constitute substantially the entire front cover of the binder, or it may be inserted into a transparent pocket on the front cover of the binder. The eraser may be of a broad area permanent magnet type which may be brought into engagement with the entire magnetizable panel; or a smaller linear permanently magnetized eraser may be employed. In one embodiment the magnetizable panel may be pivotally mounted on the front cover of the binder, so that it may be folded over to expose the back of the binder for accessible erasing.
Images(6)
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Claims(22)
What is claimed is:
1. A binder assembly with a magnetizable write/erase panel comprising:
a binder with front and rear covers and an intermediate spine;
a magnetizable write/erase panel pivotally mounted to extend over at least part of one cover of said binder, to selectively expose either the front or the rear of said panel;
at least one of said covers having a substantially flat magnetizable write/erase panel mounted thereon;
said write/erase panel having inner and outer sheets, viscous material between said sheets, and particulate magnetic material dispersed in said viscous material;
said outer sheet being translucent,
a magnetic stylus for applying a magnetic force to said outer sheet to draw said particulate magnetic material to said translucent outer sheet to create an image;
a magnetic eraser for application to said write/erase panel to erase any image appearing on said outer surface; and
said binder having retaining arrangements for securing said magnetic stylus to said binder.
2. A binder assembly as defined in claim 1, wherein means are provided for selectively holding said magnetizable panel closed against the front cover of said binder assembly.
3. A binder assembly as defined in claim 2, wherein said holding means is a zipper or slide fastener.
4. A binder assebly as defined in claim 3, wherein said front and rear covers are selectively held in the closed configuration by a zipper or slide fastener.
5. A binder as defined in claim 1, wherein said panel is pivotally mounted to said binder assembly near said spine.
6. A binder assembly as defined in claim 1, wherein said panel is substantialy coextensive with said front cover.
7. A binder assembly as defined in claim 1, wherein said front cover has pockets thereon.
8. A binder assembly comprising:
a front cover;
a rear cover hingedly coupled to said front cover;
a paper retention construction for holding papers within said binder;
a magnetizable write/erase panel pivotally mounted to extend over at least part of one cover of said binder, to selectively expose either the front or the rear of said panel;
a magnetic stylus for writing on or forming an image on said panel; and
a magnetic eraser for application to said magnetizable panel to clear any writing or image on said panel.
9. A binder assembly as defined in claim 8, wherein means are provided for selectively holding said magnetizable panel closed against the front cover of said binder assembly.
10. A binder assembly as defined in claim 9, wherein said holding means is a zipper or slide fastener.
11. A binder assebly as defined in claim 8, wherein said front and rear covers are selectively held in the closed configuration by a zipper or slide fastener.
12. A binder as defined in claim 8, wherein said panel is pivotally mounted to said binder assembly near said spine.
13. A binder assembly as defined in claim 8, wherein said panel is substantialy coextensive with said front cover.
14. A binder assembly as defined in claim 8, wherein said front cover has pockets thereon.
15. A binder assembly comprising:
a front cover;
a rear cover hingedly coupled to said front cover;
a paper retention construction for holding papers within said binder;
a magnetizable write/erase panel pivotally mounted with respect to said front cover, to extend over at least part of said front cover of said binder, to selectively expose either the front or the rear of said panel; and
releasable fastening arrangements for holding said panel overlying said front cover;
whereby said magnetizable panel may be written on when in the closed configuration and said panel may be erased when pivoted to an open configuration.
16. A binder assembly as defined in claim 15, wherein said fastening arrangements are implemented by a zipper or slide fastener.
17. A binder assembly as defined in claim 15, wherein said front and rear covers are selectively held in the closed configuration by a zipper or slide fastener.
18. A binder as defined in claim 15, wherein said panel is pivotally mounted to said binder assembly near one edge of said front cover.
19. A binder assembly as defined in claim 15, wherein said panel is substantialy coextensive with said front cover.
20. A binder assembly as defined in claim 15, wherein said front cover has pockets thereon.
21. A binder as defined in claim 15, wherein said magnetic panel has a micro-encapsulated construction.
22. A binder as defined in claim 15, wherein the overall dimensions of said binder are greater than 8 by 11 inches to readily accommodate paper having A-4 or 8 by 11 inch size.
Description
    RELATED APPLICATIONS
  • [0001]
    This is a continuation-in-part of U.S. patent application Ser. No. 10/077,492 filed Feb. 15, 2002 entitled Magnetic Write/Erase Binder (Docket 682).
  • FIELD OF THE INVENTION
  • [0002]
    This invention relates to binders and to magnetic write/erase assemblies.
  • BACKGROUND OF THE INVENTION
  • [0003]
    A number of toys have been proposed using magnetic write/erase assemblies. These toys characteristically have an upper translucent plastic sheet and a lower plastic sheet bonded together at the edges thereof, with a viscous material, such as a gel or thick fluid between the two sheets, and particulate magnetic material dispersed in the viscous material. A magnetic stylus is provided to write on the assembly by engaging the stylus to the upper surface of the assembly. Magnetic particles are drawn to the upper surface providing a visual image; and a large area magnet or an extended linear magnet is moved across the lower surface of the assembly to erase the image. The assembly may be divided into cells in order to maintain substantially uniform distribution of magnetic particulate material throughout the assembly.
  • [0004]
    A number of prior art patents disclose specific constructions for write/erase magnetic assembly boards, and these include the following: U.S. Pat. No. 4,643,684; U.S. Pat. No. 4,804,327; U.S. Pat. No. 5,018,979; U.S. Pat. No. 5,057,363; U.S. Pat. No. 5,151,032; U.S. Pat. No. 5,411,398; U.S. Pat. No. 3,426,453; U.S. Pat. No. 5,112,229; U.S. Pat. No. 5,295,837; U.S. Reissue Patent No. 25,363 and U.S. Pat. No. 3,426,453.
  • [0005]
    Toys involving the type of magnetic write erase assemblies disclosed in the foregoing patents are available in toy stores. Such toys are provided with magnetic styli and integral mechanical erase arrangements, with the resultant assemblies being in the order of a half inch or more in thickness.
  • SUMMARY OF THE INVENTION
  • [0006]
    In one specific illustrative embodiment of the invention, a three ring type binder for holding papers is provided with a cover which has an exposed magnetic read/write panel which is relatively thin, such as one tenth of an inch (0.10 inch) or less; and secured to the binder are a permanent magnetic stylus, and an extended permanent magnet eraser. The stylus and the extended permanent magnet eraser are removably mounted onto the binder structure so as not to impair the normal capability of the three ring binder.
  • [0007]
    Various features which may be included in the binder include the following:
  • [0008]
    1. The extended permanent magnet erasing may be accomplished using a permanent magnet sheet, preferably mounted in the rings of the three ring binder, so that it may be shifted into engagement with the rear of the magnetizable panel for erasing.
  • [0009]
    2. The permanent magnet eraser may be elongated and may be one inch up to several inches long, and may be mounted on the inside of one of the covers of the binder for easy access.
  • [0010]
    3. The magnetizable panel may be inserted into the transparent pocket of a binder such as that shown in U.S. Pat. No. 5,857,797.
  • [0011]
    4. The magnetizable panel may form substantially the entire front cover of the binder.
  • [0012]
    5. The binder may be of any conventional configuration for holding papers, and need not be a conventional three ring binder.
  • [0013]
    6. The magnetic writing stylus may be mounted on the spine of the binder, or on the inner surface on one of the covers of the binder so that it does not unduly expand the size of the binder.
  • [0014]
    7. The permanent magnet writing stylus may be structurally combined with a magnetic eraser.
  • [0015]
    In accordance with an additional embodiment of the invention a write/erase magnetic binder may have a main portion of the binder with front and rear covers, and paper retention arrangements, and may have the write/erase magnetic sub-assembly or panel, separately pivoted at or near the spine of the binder or along any edge of the magnetic panel, and overlying the main front cover of the binder, so that the rear of the write/erase magnetic panel may be exposed for easy and accessible erasing, while the main section of the binder remains closed.
  • [0016]
    In one preferred embodiment, two zippers or other closures may be provided, one extending around the main section of the binder, and the other extending around the outer edges of the front cover and the magnetic write/erase sub-assembly. Further, this embodiment may conveniently have a cloth outer covering.
  • [0017]
    The magnetic panel is preferably substantially coextensive with the front cover of the binder. However, if desired, the magnetic panel may be fairly small, and pivotally mounted to the front cover along one edge of the panel, not necessarily at or near the spine.
  • [0018]
    Other objects, features and advantages of the invention will become apparent by consideration of the following detailed description and the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0019]
    [0019]FIG. 1 is a perspective view of a 3-ring binder illustrating the principles of the invention;
  • [0020]
    [0020]FIG. 2 is a front view of the binder of FIG. 1 showing the read/write erase panel, and the magnetic stylus;
  • [0021]
    [0021]FIG. 3 is a partial cross-sectional view taken along line 3-3 of FIG. 2;
  • [0022]
    [0022]FIG. 4 is a schematic cross-sectional view of one embodiment of a read/write magnetizable panel;
  • [0023]
    [0023]FIG. 5 is a partial cross-sectional view of a stylus showing a small permanent magnet at one end thereof;
  • [0024]
    [0024]FIG. 6 is a perspective view of a broad area permanent magnet which may be used either for erasing by engaging the permanent magnet surface with the backside of the magnetizable panel or for darkening broad areas on the front, writing side of the panel;
  • [0025]
    [0025]FIG. 7 is a cross-section of a linear erasing magnet, with a side view of the erasing magnet of FIG. 7 being shown in FIG. 8;
  • [0026]
    [0026]FIG. 9 shows a simple linear eraser;
  • [0027]
    [0027]FIG. 10 is a cross-sectional view taken along lines 10-10 of FIG. 9;
  • [0028]
    [0028]FIG. 11 is a front view of a binder where the magnetizable panel constitutes most of the front cover of the binder;
  • [0029]
    [0029]FIG. 12 is a partial cross-sectional view of the front cover of the binder taken along lines 12-12 of FIG. 11;
  • [0030]
    [0030]FIG. 13 is a perspective view showing a magnetizable panel being inserted into a transparent pocket in a prior art type binder;
  • [0031]
    [0031]FIG. 14 is a perspective view of another binder illustrating the principles of the invention in which a broad area erasing magnet is mounted to the rings of the 3-ring binder;
  • [0032]
    [0032]FIG. 15 is a perspective view of a further embodiment of the invention in which the binder has the magnetic write/erase panel pivotally mounted on the binder cover and accessible without opening the main cover of the binder; and
  • [0033]
    [0033]FIG. 16 shows the binder of FIG. 15 with the magnetic write/erase assembly in the process of being erased.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0034]
    While the specification describes particular embodiments of the present invention, those of ordinary skill can devise variations of the present invention without departing from the inventive concept.
  • [0035]
    Referring more particularly to the drawings, FIG. 1 is a perspective view of a 3-ring binder 14 having a front cover 16 into which a magnetizable panel 18 has been mounted. A magnetic stylus 20 is mounted on the spine 22 of the binder 14 with an integral pouch 24.
  • [0036]
    [0036]FIG. 2 is a front view of the binder 14, with the reference numerals identifying corresponding parts.
  • [0037]
    [0037]FIG. 3 is a schematic cross-sectional view taken along lines 3-3 of FIG. 2. As shown in FIG. 3 the cover 16 of the binder 14 has a central stiff panel 26 which may be formed of a chip board covered with a thin layer of plastic material 28. The magnetizable panel 18 may be recessed into the cover 26, and may have a thin layer of tape 30 to hold it firmly in place.
  • [0038]
    The magnetizable panel 18 may be in any of a number of specific physical configurations, with one panel 18 shown in FIG. 4 corresponding to the panel shown in U.K. Pat. Application 2034640A filed Sep. 14, 1979. The exemplary panel shown in FIG. 4 includes an upper flat transparent or translucent plastic layer 34, and a second layer of plastic material 36 into which a plurality of pockets have been formed. Within the pockets between the layers 34 and 36 is high viscosity or gel like material 38 in which magnetizable material is suspended. With the panel 18 including a large number of spaced pockets, the particulate magnetic material is blocked from drifting down to one edge of the entire panel. Instead, the magnetizable material is distributed across the surface of the panel so that some of the magnetic particulate material is available to respond and to be drawn up against the upper translucent or transparent panel 34 when the stylus is moved into engagement with the upper panel 34. The lower panel 40 is optional and may not be needed when stiffness or semi-rigidity of the two panels 34 and 36 is sufficient. Incidentally, the thickness of the layers in the showing of FIG. 4 has been exaggerated and the total thickness of the panel would normally be about 0.10 inch or less, with each plastic sheet being only a few thousandths of an inch thick.
  • [0039]
    [0039]FIG. 5 shows a stylus 42 which may be formed of plastic material, with a permanent magnet 44, preferably having a rounded tip, extending from one end of the stylus. In order to erase the writing which appears on the magnetizable panel as a result of application of the stylus, a magnetic field is applied to the lower surface of the panel. This may be accomplished by the application of a permanent magnet in the form of a permanently magnetized sheet 46 secured to a plastic sheet 48 to which a handle 50 is pivotally mounted at pivot points 52 and 54. The resultant flat eraser assembly may be mounted on one of the covers of the binder.
  • [0040]
    In practice, therefore, a stylus such as the stylus 42 engages the upper surface of a magnetizable panel such as the panel 18, and magnetic particles are drawn up into engagement with the inner surface of the translucent panel 34, thereby providing a visual image. When it is desired to erase the image, the permanent magnet eraser unit as shown in FIG. 6, is applied to the lower surface of the panel 18, to pull the magnetic particles away from the upper surface 34, thereby wiping out the image.
  • [0041]
    Alternative forms of permanent magnet erasers are shown in FIGS. 7, 8, 9 and 10. More specifically, the eraser shown in FIG. 7 includes a permanent magnet 62 with pole pieces of magnetizable material 64 and 66.
  • [0042]
    [0042]FIG. 8 is a side view of the eraser of FIG. 7 with only the pole piece 64 being visible in this showing.
  • [0043]
    [0043]FIG. 9 is a side view of an alternative linearly extending eraser 72 which includes a rectangular elongated permanent magnet 74 and an outer U-shaped plastic layer 76 which covers the upper portion of the magnetic eraser. Incidentally, the cross-sectional view of FIG. 10 is taken along lines 10-10 of FIG. 9.
  • [0044]
    Referring now to FIG. 11 of the drawings, this is a front view of a binder 80 in which the magnetizable panel 82 constitutes virtually all of the front cover of the binder. The outer edges 84, 86, 88 and 90 of the binder are fabric material and they are stitched into the outer edges of the panel 82 where the top and bottom surfaces are bonded together.
  • [0045]
    [0045]FIG. 12 is a cross-sectional view of the top cover and edge treatment of the binder of FIG. 11 taken along lines 12-12 of FIG. 11. In FIG. 12, the magnetizable panel 82 is stitched to the outer cloth binding at reference number 84, with the edge beading of the binder being indicated at reference numeral 92. The zippered closure of the binder 80 is indicated at reference number 94.
  • [0046]
    [0046]FIG. 13 shows a binder 102 of the type shown in U.S. Pat. No. 5,857,797 in which the front cover has a transparent pocket 104 which is intended to receive images such as photographs and the like. In this embodiment, the read/write magnetic panel is mounted in the pocket formed between the transparent window 104 and the main stiff portion of the binder cover.
  • [0047]
    Referring now to FIG. 14 of the drawings, the binder 110 includes a front cover 112, and a rear cover 114. The area 116 which is defined by dashed lines, refers to the location of a magnetizable panel such as the panel 18 as shown in FIG. 1 of the drawings. The stylus 118 is mounted in a stylus holder 120 well above the area 116 where the magnetizable panel is located. Below the area 116 is an additional holder 122 in which the elongated permanent magnet eraser 124 may be mounted. Alternatively, a pen or other conventional writing instruments may be mounted in an appropriately sized pouch 122. A large area permanent magnet 126 is mounted on the flexible plastic panel 128, which in turn is mounted through the apertures 130 to the rings 132 of the binder 110. When the mounting sheet 128 is folded toward the front cover 112, with the permanent magnet material 126 directly overlying the area 116, the permanent magnet material 126 may be pressed forward into engagement with the inner surface of the front cover 112 of the binder, overlying area 116, thereby erasing any image previously written onto the magnetizable panel on the front of the binder. Normally, the panel 128 is spaced somewhat apart from the front cover 112, by the presence of the stylus 118 and the lower pouch 122 on the inner cover 112 of the binder 110. However, the mounting sheet 128 for the permanent magnet eraser 126 is sufficiently flexible that it may be bent slightly permitting engagement of the permanent magnet 126 with the interior surface 116 of the front cover 112 of the binder.
  • [0048]
    Referring now to FIGS. 15 and 16 of the drawings, the binder 202 includes two sections, a main section 204 containing a 3-ring paper holding assembly as shown in FIG. 1, for example, and a front portion which is principally formed of the central magnetic write/erase panel 206. Secured around the panel 206 is a cloth frame 208 which has a zipper 210 extending around three sides thereof. A mating zipper 212 extending along three sides of the front cover 214 of the binder permits closure of the front section by the zipper actuator 216.
  • [0049]
    Accordingly, images 218 may be formed on the front of the magnetic write/erase panel 206 by magnet 220, in stylus form; and the images may be erased by the application of the extended surface erase magnet 222 on the back of the magnetic panel 206, as indicated in FIG. 16.
  • [0050]
    The main section of the binder 202 has a front cover 214, and a rear cover 224. These two covers may be held together by a second zipper 226. Accordingly the rear of the magnetic panel 206, may be exposed for erasing purposes without opening the main section of the binder 202.
  • [0051]
    Incidentally, one or more pockets 228 for papers or other objects, such as a ruler, a magnetic stylus, or magnetic eraser, may be provided on the front cover 214. It is also noted that the edges and the rear of the binder 202 may be fabric covered.
  • [0052]
    It is noted in passing that the magnetic panel could be hinged to the front cover at the top, bottom, or front edge of cover 214 instead of at the spine. Further, the magnetic panel may be only one-half or less in size than the cover of the binder, and the magnetic panel may be pivoted along any edge thereof to expose the back surface thereof for erasing.
  • [0053]
    It is also noted that instead of a zipper the magnetic panel may be releasable held in place by mating hook and loop type fasteners, by snap locking arrangements or by other convenient fastening arrangements. The main front and rear covers of the binder may be similarly held together, or may be free to open and close without closure arrangements.
  • [0054]
    It is noted in passing that the patents cited hereinabove indicate the types of materials which may be employed for the magnetizable binder panel per se. High strength permanent magnet material may be made of known ferrite materials, or any other known high magnetic strength materials.
  • [0055]
    In the foregoing detailed description several specific embodiments of the invention have been described in some detail. It is to be understood, however, that various changes and modifications may be made by those skilled in the art. Thus, by way of example and not of limitation, different materials for the top and bottom and sheets of the magnetizable panels, as well as different materials for the high viscosity or gel like contents of the panel, and the magnetic particulate material, may be employed, with reference being made to the cited patents. As indicated, the magnetizable panel may constitute the entire front cover of the binder, or may be of a smaller size, occupying only a portion of the area of the front cover of the binder. The permanent magnet stylus and the permanent magnet eraser may be located in any desired location on the binder either on the outer covers or spine, or on the inside surface of the front or rear covers. If desired, the stylus and the eraser may be mounted along the outer edge of the binder so that there is no reduction in the amount of paper or sheets of paper which may be contained within the binder. The binders may be of any of the known types of binders, including those with fairly stiff covers, and those where the covers are quite thin and are semi flexible.
  • [0056]
    With regard to the construction of the magnetizable panels, although the panels as shown in the present drawings are indicated as being segmented or compartmentalized, this construction is not necessary if the magnetizable material is maintained substantially uniformly distributed across the panel. Preferred magnetizable panels using a micro-encapsulative construction to avoid the need for compartmentalization, are available from a company identified as “China Zhejiang 001 Electronic Group Co. Ltd.” of Zhejiang Province, China.
  • [0057]
    Concerning the size of the binder, in one illustrative binder, a ring configuration was mounted at the spine, to hold 811 inch or A-4 paper, and the overall size of the binder was approximately 12 inches long and about 11 inches wide. The magnetic panel was about 8 inches by 11 inches in size. More generally the magnetic panel is preferably substantially coextensive with the cover, as in the foregoing example, but may also be somewhat smaller, if desired.
  • [0058]
    Concerning other alternatives or variations, it is noted that the magnetic panels may be on either or both the front cover or back cover of the binders. For private reminder notes, for example a magnetizable panel mounted on the rear cover could have its writing surface on the inside of the rear cover. It is noted that the cited prior art references disclose various alternatives including the use of permanently magnetized movable elements in the panel with north and south polarized writing styli; and many other alternatives, any of which may be incorporated into the present binder assemblies. Erasing may be accomplished from the front in some embodiments. It is also noted that when the term “translucent” is used, it includes “transparent” materials. In addition to applicability to common three ring binders the invention is applicable to other types of binders for papers, including binders with posts for holding papers and binders where the sheets are held together with spiral, spring like coils. Concerning the thickness of the magnetic panels, successful binder assemblies have used magnetic panels which are about 80 thousandths (0.080) of an inch thick. More generally, it is desirable to have binders as thin as possible, less than inch thick and preferably less than one tenth (0.10) inch thick. If desired, a single stylus may be provided with both writing and erasing capabilities, using, for example, an extended magnet on the side thereof, or appropriate north and south poles at different locations on the stylus. The extended linear erasing arrangements may be an inch or more in length, and the width may be one half or less than the length.
  • [0059]
    Accordingly, the present invention is not limited precisely to the embodiments shown in the drawings and is described in detail hereinabove.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7766390 *Oct 29, 2007Aug 3, 2010Edison Nation, LlcSecuring arrangement of loose elements in draft arrangement on work surface of hand portable object
US7815388Dec 5, 2005Oct 19, 2010Meadwestvaco CorporationRetractable writing surface
US7905672Mar 15, 2011Meadwestvaco CorporationInsertable dividers for a bound component
US20050158113 *Apr 20, 2004Jul 21, 2005Wehmeyer Stephen D.Erasable writing system
US20050175390 *Oct 12, 2004Aug 11, 2005Meadwestvaco CorporationErasable writing system
US20060216108 *Dec 5, 2005Sep 28, 2006Busam Edward PInsertable dividers for a bound component
US20060257200 *Dec 5, 2005Nov 16, 2006Busam Edward PRetractable writing surface
US20070126225 *Oct 2, 2006Jun 7, 2007Busam Edward PRepositionable insert
US20080116683 *Oct 29, 2007May 22, 2008Arccivo, LlcSecuring arrangement of loose elements in draft arrangement on work surface of hand portable object
US20080257224 *Apr 17, 2008Oct 23, 2008Aptus Designs LlcFolding Desktop Table and Magnetic Mat
USD656188Jul 7, 2008Mar 20, 2012Staples The Office Superstore, LlcBinder
USD666242Aug 28, 2012Staples The Office Superstore, LlcBinder
Classifications
U.S. Classification281/39
International ClassificationB43L1/00, B42F13/00, B42D15/00
Cooperative ClassificationY10S402/503, B82Y15/00, B42D15/0093, B43L1/008, B42F13/0013
European ClassificationB82Y15/00, B42F13/00B2, B42D15/00H6, B43L1/00M
Legal Events
DateCodeEventDescription
Aug 5, 2002ASAssignment
Owner name: AVERY DENNISON CORPORATION, CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STENGER, JOHN F.;PODOSEK, ED;HIBBERD, CHRISTINE K.;AND OTHERS;REEL/FRAME:013160/0639;SIGNING DATES FROM 20020409 TO 20020716
Feb 20, 2007FPAYFee payment
Year of fee payment: 4
Mar 28, 2011REMIMaintenance fee reminder mailed
Aug 19, 2011LAPSLapse for failure to pay maintenance fees
Oct 11, 2011FPExpired due to failure to pay maintenance fee
Effective date: 20110819