Retaining wall block

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Description

FIG. 1 is a right side perspective view of a retaining wall block showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a right side elevation view, the left side view being a mirror image thereof;

FIG. 4 is a front elevation view; and,

FIG. 5 is a rear elevation view.

Referenced Cited
U.S. Patent Documents
D203590 February 1966 Davis
D250484 December 5, 1978 Mose
3418774 December 1968 Kocher et al.
3998022 December 21, 1976 Mose
4123881 November 7, 1978 Mose
4229123 October 21, 1980 Heinzmann
4794749 January 3, 1989 Marcel
Other references
  • "Light in the Hand . . . Heavy in the Wall" Brochure, 2 pages, by Stonewall Retaining Wall Systems and Westblock Products, Inc. 1991. "PISA II Interlocking Retaining Wall System" Brochure, 2 Pages, by PISA II and RISI Stone Ltd. 1988. "PISA II Interlocking Retaining Wall System for Garden Landscaping" Brochure, 2 Pages, by PISA II and RISI Stone Ltd. 1984, 1985. "Interlocking Retaining Walls From RISI Stone" Brochure, 2 Pages, by Rothbury Investments Ltd. and RISI Stone Ltd. 1989. "Garden Wall, Another Quality Product From Keystone Retaining Wall Systems" Brochure, 2 Pages, by Keystone Retaining Wall Systems .COPYRGT.1991.
Patent History
Patent number: D343461
Type: Grant
Filed: Oct 5, 1992
Date of Patent: Jan 18, 1994
Inventor: Arthur T. Powell (Lehi, UT)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Attorney: M. Reid Russell
Application Number: 0/19
Classifications
Current U.S. Class: Perforated Or Openwork (18) (D25/114)