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Publication numberUSD316904 S
Publication typeGrant
Application numberUS 07/273,874
Publication dateMay 14, 1991
Filing dateNov 21, 1988
Publication number07273874, 273874, US D316904 S, US D316904S, US-S-D316904, USD316904 S, USD316904S
InventorsPaul J. Forsberg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Convex block
US D316904 S
Abstract  available in
Images(5)
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Claims(1)
  1. The ornamental design for a convex block, as shown and described.
Description

FIG. 1 is a front perspective view of a convex block showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end elevational view, the opposite end being a mirror image thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a front perspective view of a second embodiment of a convex block showing my new design;

FIG. 8 is a top plan view of FIG. 7;

FIG. 9 is a front elevational view of FIG. 7;

FIG. 10 is a bottom plan view of FIG. 7;

FIG. 11 is a side elevational view of FIG. 7, the opposite side being a mirror image thereof;

FIG. 12 is a rear elevational of FIG. 7;

FIG. 13 is a front perspective view of a third embodiment of a convex block showing my new design;

FIG. 14 is a top plan view of FIG. 13;

FIG. 15 is a front elevational view of FIG. 13;

FIG. 16 is a bottom plan view of FIG. 13;

FIG. 17 is an end elevational view of FIG. 13, the opposite end being a mirror image thereof;

FIG. 18 is a rear elevational view of FIG. 13;

FIG. 19 is a front prospective view of a fourth embodiment of the convex block showing my new design;

FIG. 20 is a top plan view of FIG. 19;

FIG. 21 is a front elevational view of FIG. 19;

FIG. 22 is a bottom plan view of FIG. 19;

FIG. 23 is a side elevational view of FIG. 19, the opposite side being a mirror image thereof;

FIG. 24 is a rear elevational view of FIG. 19;

FIG. 25 is a front perspective view of a fifth embodiment of a convex block showing my new design;

FIG. 26 is a top plan view of FIG. 25;

FIG. 27 is a front elevational view of FIG. 25;

FIG. 28 is a bottom plan view of FIG. 25;

FIG. 29 is a side elevational view of FIG. 25, the opposite side being a mirror image thereof; and

FIG. 30 is a rear elevational view of FIG. 25.

Non-Patent Citations
Reference
1"Paving Stone", publication, Jun. 1984.
2Besser Company Bulletin, Feb. 1985.
3Besser, "Modular Concrete Block", publication, pp. 18-19, 1984.
4Concrete Masonry Pictorial, vol. 33, No. 3, p. 5, 1977.
5The Hollow Building Handbook, p. 11, Jan. 1924.
Referenced by
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US5589124Jun 6, 1995Dec 31, 1996Block Systems, Inc.Method of forming composite masonry blocks
US5704183May 23, 1995Jan 6, 1998Anchor Wall Systems, Inc.Composite masonry block
US5709062Jul 15, 1996Jan 20, 1998Anchor Wall Systems, Inc.Composite masonry block
US5711129May 4, 1995Jan 27, 1998Anchor Wall Systems, Inc.Masonry block
US5795105Jun 7, 1995Aug 18, 1998Anchor Wall Systems, Inc.Composite masonry block
US5827015Sep 2, 1997Oct 27, 1998Anchor Wall Systems, Inc.Composite masonry block
US5879603Nov 8, 1996Mar 9, 1999Anchor Wall Systems, Inc.Process for producing masonry block with roughened surface
US6029943Feb 28, 1997Feb 29, 2000Anchor Wall Systems, Inc.Splitting technique
US6113318Aug 7, 1998Sep 5, 2000Anchor Wall Systems, Inc.Composite masonry block
US6142713 *Sep 25, 1998Nov 7, 2000Anchor Wall Systems, Inc.Composite masonry block
US6178704Jul 1, 1999Jan 30, 2001Anchor Wall Systems, Inc.Splitting technique
US6183168Feb 3, 2000Feb 6, 2001Anchor Wall Systems, Inc.Composite masonry block
US6312197Sep 18, 2000Nov 6, 2001Anchor Wall Systems, Inc.Composite masonry block
US6616382Sep 17, 2001Sep 9, 2003Anchor Wall Systems, Inc.Composite masonry block
US7823360Nov 2, 2010Jared CottleOpen core building blocks system
US20040028484 *Aug 5, 2003Feb 12, 2004Anchor Wall Systems, Inc.Composite masonry block
US20090090077 *Oct 3, 2007Apr 9, 2009Sci MaterialsRetaining wall block and system
US20100132298 *Sep 18, 2009Jun 3, 2010Sci MaterialsRetaining wall block and system
USD445512Oct 27, 1997Jul 24, 2001Anchor Wall Systems, Inc.Retaining wall block
USD458693Nov 8, 1996Jun 11, 2002Anchor Wall Systems, Inc.Retaining wall block
Classifications
U.S. ClassificationD25/114