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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
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
Citing PatentFiling datePublication dateApplicantTitle
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
US7823360May 24, 2007Nov 2, 2010Jared CottleOpen core building blocks system
Classifications
U.S. ClassificationD25/114