Retaining wall block

Details Retaining wall block Retaining wall block

2006-09-12

2006-09-12

Delehanty, Robert A. (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0528223

CLAIM:
The ornamental design for a retaining wall block, as shown and described.

REFERENCES:
patent: 4379659 (1983-04-01), Steiner
patent: 4380887 (1983-04-01), Lee
patent: 4384810 (1983-05-01), Neumann
patent: 4671706 (1987-06-01), Giardini
patent: 4884921 (1989-12-01), Smith
patent: D310267 (1990-08-01), Zeidman
patent: 4964761 (1990-10-01), Rossi
patent: 5066169 (1991-11-01), Gavin et al.
patent: 5072566 (1991-12-01), Zeidman
patent: 5108231 (1992-04-01), Rausch
patent: 5154542 (1992-10-01), Klenert
patent: 5177925 (1993-01-01), Winkler
patent: D351239 (1994-10-01), Klenert
patent: D357748 (1995-04-01), Jansson
patent: 5564865 (1996-10-01), Jansson
Brochure of Loffel Retaining Walls, Inc., Carlsbad, California “Loffelstein Retaining Walls”, 1988.
Manual of Loffel Retaining Walls, Inc., Carlsbad, California “Loffelstein Engineering Manual”, 1988.

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