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Publication numberUSD340996 S
Publication typeGrant
Application numberUS 07/954,487
Publication dateNov 2, 1993
Filing dateSep 30, 1992
Publication number07954487, 954487, US D340996 S, US D340996S, US-S-D340996, USD340996 S, USD340996S
InventorsMark A. Woolbright
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Retaining wall building block
US D340996 S
Abstract  available in
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  1. The ornamental design for retaining wall building block, as shown and described.

FIG. 1 is a top plan view of a retaining wall building block showing my new design;

FIG. 2 is a bottom plan thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a left side elevational view thereof.

Non-Patent Citations
1Allan Block Corporation, Bloomington, Minn., Allan Block Retaining Walls, pp. 1-4 and two inserts, 1990.
2Keystone Retaining Wall Systems, Inc., Minneapolis, Minn., Compac Unit, pp. 1 and 2, 1990.
3Keystone Retaining Wall Systems, Inc., Minneapolis, Minn., Keystone Retaining Wall Systems, Foldable insert, 1991.
4Kiltie Corporation, North St. Paul Minn., Versa-Lok Retaining Wall Systems, Foldable insert, 1989.
5Seagren Industries, Inc., St. Louis, Mo., Loffelstein Retaining Walls, pp. 1-4 and insert , Circa. 1990.
6Stone Wall, Lanscape Retaining Wall System, pp. 1-4 and one insert, Circa. 1990.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US8272812Aug 17, 2009Sep 25, 2012Smart Slope LlcRetaining wall system
US8745953Sep 21, 2012Jun 10, 2014Smart Slope, LlcRetaining wall system
US20100251649 *Aug 17, 2009Oct 7, 2010Smart Slope, LlcRetaining Wall System
U.S. ClassificationD25/113