Building units and construction elements – Architectural stock material – Construction block or brick type
Design Patent
2007-03-27
2007-03-27
Zarfas, Louis S. (Department: 2914)
Building units and construction elements
Architectural stock material
Construction block or brick type
CD25S114000
Design Patent
active
29259288
CLAIM:
I claim the ornamental design for a retaining wall block, as shown
REFERENCES:
patent: 1795451 (1931-03-01), Sharpe
patent: D343461 (1994-01-01), Powell
patent: D363787 (1995-10-01), Powell
patent: 5827015 (1998-10-01), Woolford et al.
patent: 6682269 (2004-01-01), Price et al.
Andoll Gregory
Patterson Thuente Skaar & Christensen P.A.
Rockwood Retaining Walls Inc.
Zarfas Louis S,.
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