Retaining wall block

Description

FIG. 1 is a bottom front perspective view of a retaining wall block of my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a sectional view taken along line 6--6 of FIG. 2; and

FIG. 7 is a sectional view taken along line 7--7 of FIG. 3.

Claims

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

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Inventors:	Forsberg; Paul J. (Burnsville, MN)
Assignee:	Keystone Retaining Wall Systems, Inc. (Edina, MN)
Appl. No.:	07/202,431
Filed:	June 6, 1988

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Related U.S. Patent Documents

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	Application Number	Filing Date	Patent Number	Issue Date
	59481	Jun 8, 1987	Des. 294463
	870860	Jun 2, 1986	Des. 297464
	869933	Jun 2, 1986	Des. 297574
	37444	Apr 3, 1987

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Current U.S. Class:	D25/114; D25/116
Field of Search:	;405/284,285,286,33 ;404/41,42,34 ;52/608,605 ;D25/113,114,115,116,117,118

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References Cited [Referenced By]

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U.S. Patent Documents

126547	May 1872	Hickcox
228052	May 1880	Frost
D237704	November 1975	Lane
566924	September 1896	Morrin
810748	January 1906	Haller et al.
1092621	April 1914	Worner
1414444	May 1922	Straight
1456498	May 1923	Binns
2235646	March 1941	Schaffer
2882689	April 1959	Huch et al.
2963828	December 1960	Belliveau
3036407	May 1962	Dixon
3274742	September 1966	Paul, Jr. et al.
3390502	July 1968	Carroll
3430404	March 1969	Muse
3557505	January 1971	Kaul
3936987	February 1976	Calvin
3995434	December 1976	Kato et al.
4016693	April 1977	Warren
4110949	September 1978	Cambiuzzi et al.
4207718	June 1980	Schaaf et al.
4208850	June 1980	Collier
4228628	October 1980	Schlomann
4229123	October 1980	Heinzmann
4312606	January 1982	Sarikelle
4335549	June 1982	Dean, Jr.
4454699	June 1984	Strobl
4496226	January 1985	Ruckstuhl
4524551	June 1985	Scheiwiller
4572699	February 1986	Rinninger

Foreign Patent Documents

	392474		Nov 1908		FR
	1360872		Apr 1964		FR
	205452		Jun 1939		CH
	336		1871		GB
	1385207		Feb 1975		GB
	2127872A		Apr 1984		GB

Other References

The Hollow Building Tile Assoc., Handbook, p. 11, Jan. 1924. . Concrete Masonry Pictorial, vol. 33, No. 3 C, 1977, p. 35. . The Besser Company brochure, "Modular Concrete Block", 1984, pp. 18-19. . The Besser Company brochure, "Paving Stone", Jun. 1984, 2 pages. . The Besser Company Bulletin, Feb. 1985..

Primary Examiner: Word; A. Hugo
Attorney, Agent or Firm: Burd, Bartz & Gutenkauf