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Publication numberUS2475698 A
Publication typeGrant
Publication dateJul 12, 1949
Filing dateAug 28, 1945
Priority dateAug 28, 1945
Publication numberUS 2475698 A, US 2475698A, US-A-2475698, US2475698 A, US2475698A
InventorsThomas Croker
Original AssigneeThomas Croker
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Memorandum pad
US 2475698 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


Filed Aug. 28, 1945 7 Thomas Cra/ref,


Patented July 12, 1949 UNITED STATES PATENT OFFICE 2,475,698 MEMORANDUM PAD Thomas Croker, Chicago, 111. Application August 28, 1945, Serial No. 613,085

1 Claim.

This invention relates to a novel memorandum pad.

An object of this invention is to provide a memorandum pad for positioning on a page of a book like a bookmark in which the face covering the front face of the book page is provided with a visible portion of a transparent sheet cooper-atively arranged with respect to an underlying translucent sheet to visibly reproduce matter written upon the transparent sheet.

Another object of the present invention is to provide a memorandum pad having a face for covering the front face of a book page provided with a visible portion of a transparent sheet coperatively arranged with respect to an underlying translucent sheet to visibly reproduce matter written upon the transparent sheet, with an elongated eraser slidable along such memorandum pad face for detaching the translucent sheet from cooperative relation with the visible portion of the transparent sheet to thereby erase the written matter.

Other objects of this invention will appear from the following specification and claims and from the accompanying drawings illustrating the invention, wherein:

Figure 1 is a plan view of the book marker with some of the layers of material cut away to show the construction;

Figure 2 is a sectional view taken along line 2-2 of Figure 1; and

Figure 3 is a sectional view taken along line til-53 of Figure 1.

Referring to the drawings, I represents a page of a book and Figure 1 sho 's the book marker '32 thereupon. The book marker has a base sheet 3 made of cardboard and having its top surface covered with a coating of paraffin or wax and presenting a dark background. Layer 4 on top of base 3 consists of a thin white translucent tissue sheet made of cellophane or other suitable material. On top of white tissue 4 is a sheet 5 consisting of a thin transparent film also made of cellophane or the like. The sheets 3, 4 and 5 are covered, front and back, with a singlecolored leather strip 6 which is folded at the top. That part of the leather strip forming the front of the book marker is cut out at the center leaving only a rim portion forming a frame for the layers beneath. The bottom of the front portion of the leather strip is longer than the back portion and may be slit for decorative purposes, as at l. The front leather cover, the transparent sheet 5 and white sheet 4 are stitched together all the way around the frame forming portion,

as shown at 8. In addition, the paraffin-coated base member 3 is stitched to the front leather strip, the transparent sheet 5 and the white sheet 4 at the top and bottom only of the book marker.

The base sheet 3 carries a slidable member 9 having a pair of longitudinal slits it therein and having a pointer l I at one end. This pointer may be made of heavy cellophane or stout paper and is slidably mounted on base sheet 3 by means of the slits Ill so that the center portion l 2 formed by the slits is on top of the base sheet 3 and the outer portions I3 are under the base sheet 3. The stitches at the top and bottom of the book marker limit the movement of arrow member 9. Since the side stitches do not pass through the base member 3, they will not interfere with sliding movement of arrow member 9 from top to bottom and vice versa.

At the top of the book marker a stylus M made of wood or other suitable material is held by friction in a pocket formed in the leather fold above the top row of stitches.

In operation, the book marker is placed on the page, as shown in Figures 1 and 2 with the back leather cover behind the page and with the remainder of the book marker on top of the page. The arrow member 9 may be slid up or down to indicate the line where reading is to be resumed the next time. When the book is closed, the portion 1 will protrude below and will facilitate finding the correct page when reading is to be resumed.

When it is desired to make notes during the course of reading, it is merely necessary to take the stylus M or some other pointed object and write on the cellophane transparent sheet 5. The sheet 5 will yield under the stylus and cause the white sheet 4 to stick to the parafiin-cOated sheet 3 at the lines of pressing and will thus present dark lines. These marks will show through the transparent sheet 5 and will appear as writing thereon. These marks will disappear when white sheet 4 is separated from the parafiincoated sheet 3. Since center strip l2 of the arrow member 9 is located between white sheet l and sheet 3, the arrow member 9 may be moved up or down to separate these two sheets and cause the disappearance of any notes on the book marker.

Thus, the arrow member 9 serves a twofold function, namely, it serves to identify a particular line on the page of the book and it also serves to eiface reference notes made on the book marker.

While a certain specific embodiment of this invention has been shown, it will be understood that various modifications may be made within the spirit of the invention. Therefore, no limitations on the invention are intended other than are imposed by the scope of the appended claim.

I claim:

A writing pad comprising a backing sheet, a base sheet secured at its upper end to the upper end of said backingsheet andotherwisaunconnected with said? backing sheet, ,saidibase.sheet having a waxy upper surface, a white translucent sheet overlying said base sheet, a transparent. sheet overlying said white translucent sheet, said base sheet, said translucent sheet, and saidtransparent sheet being cooperatively arranged to visibly reproduce matter written upon saidtransparent sheet, a cover sheet overlying; said-retransparent sheet, said cover sheet being cut away to,

provide .an opening extending between' the opposite side edges and the opposite ends of said cover sheet anddefini-ng a'fra-me exposing-- aportion of saidtransparent sheet corresponding to said opening, for writing-thereon; first fastening means extending across and fastening together the upper ends of saidbase, white transparent, translucent, and-cover sheets; second fastening means extending across and fasteningtogether the lower ends ofsaid base,- white transparent,

and translucent sheets, and a transversely elongated eraser mounted on said pad and posi tioned between said base and white translucent sheet and slidable along said base sheet between the limits provided by said first and second fastening means for separating said white translucent sheet from said base sheet so as to erase matter written upon said pad.

REFERENCES CITED The following referenlces are of record in the file-ofthis patent:

UNITED STATES PATENTS Number. Name Date 1,008,481 Lopes Nov. 14, 1911 1;45'5',579 Evans May 15, 1923 1,512,827 Deutsch Oct. 21, 1924 1,540,777 Heller-mam 1 June 9; 1925 1,543,430 Fischer June 23, 1925 13568548 Edelson Jan. 5, 1926 156313192 Dunlap June 7', 1927 1,729g916 Vernon Got". 1, 1929 1,757,287 Bildstein May fi, 1930 2,333,597 Strauss Nov: 2, 1943 2,367,608 F'onnock Jan; 16, 1945

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1008481 *Feb 3, 1911Nov 14, 1911Joseph W LopesBook-mark.
US1455579 *Apr 12, 1920May 15, 1923Daniel EvansWriting and drawing surface
US1512827 *Jul 28, 1923Oct 21, 1924Hermann DeutschWriting and drawing device
US1540777 *Jul 27, 1922Jun 9, 1925Isaac HellermanBookmark
US1543430 *May 14, 1923Jun 23, 1925Brown & BigelowPerpetual memorandum pad
US1568548 *Feb 26, 1925Jan 5, 1926Edelson LeonGame card
US1631192 *Jan 15, 1923Jun 7, 1927Howard L FischerWriting pad
US1729916 *Mar 28, 1928Oct 1, 1929Vernon William FMemorandum device
US1757287 *Jun 28, 1927May 6, 1930Alfred BildsteinPerpetual pad
US2333597 *May 20, 1943Nov 2, 1943Harte & CompanyWriting and drawing tablet
US2367608 *Feb 8, 1944Jan 16, 1945Leon PonnockWriting tablet
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2648924 *Dec 16, 1949Aug 18, 1953Brewster Ernest BillingsLabel structure
US2879609 *Dec 23, 1953Mar 31, 1959Watkins Strathmore CompanyBooklet having attached thereto a writing pad for receiving temporary images
US3149426 *Apr 20, 1962Sep 22, 1964Kaeyer Karl AWriting device
US3512269 *Oct 9, 1967May 19, 1970Kunert HeinzProgrammed instruction device
US4911476 *Apr 3, 1989Mar 27, 1990Garza Raul GInformation pad for checkbooks
US5377612 *Dec 10, 1993Jan 3, 1995Catalano; John P.Devices for marking a page of a book and for indicating the number of such page
US5803012 *Nov 1, 1996Sep 8, 1998Kamen; Jack M.Book mark
US6021735 *Aug 19, 1998Feb 8, 2000Kamen; Jack M.Book mark for dual column page
US6298804Jan 3, 2000Oct 9, 2001Jack M. KamenBook mark for dual column page
U.S. Classification434/410, 116/240, 116/235, 281/42
International ClassificationB42D9/00, B43L1/12, B43L1/00
Cooperative ClassificationB42D9/005, B43L1/126
European ClassificationB43L1/12A2, B42D9/00B4B