Building block

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Description

FIG. 1 is an isometric view of a building block according to the invention;

FIG. 2 is a side elevation of a building block according to the invention;

FIG. 3 is a top plan view of a building block according to the invention; and

FIG. 4 is an end elevation of a building block according to the invention.

Referenced Cited
U.S. Patent Documents
D159255 July 1950 Decker, Sr. et al
D164625 September 1951 Clukie
Other references
  • Concrete Masonry Pictorial, Vol. 34, No. 1, c. 1978, p. 6, Blocks at lower right.
Patent History
Patent number: D275996
Type: Grant
Filed: Sep 29, 1982
Date of Patent: Oct 16, 1984
Inventors: John N. Rassias (Boca Raton, FL), Cecily M. Clark (New York, NY)
Primary Examiner: A. Hugo Word
Law Firm: Buell, Blenko, Ziesenheim & Beck
Application Number: 6/428,066
Classifications
Current U.S. Class: D25/89; D25/91