Concrete block

Details Concrete block Concrete block

2002-08-01

2003-08-26

Zarfas, Louis S. (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0479000

CLAIM:
The ornamental design for a “concrete block”, as shown.

REFERENCES:
patent: 5651642 (1997-07-01), Kelley, Jr. et al.
patent: 6233897 (2001-05-01), Jurik
patent: D457971 (2002-05-01), Schrader et al.
patent: 528025 (1954-04-01), None
patent: 996460 (1949-09-01), None

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