Insulated concrete block with knockouts

Details Insulated concrete block with knockouts Insulated concrete block with knockouts

2007-06-20

2008-08-05

Zarfas, Louis S (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0574517

CLAIM:
The ornamental design for an insulated concrete block with knockouts, as shown and described.

REFERENCES:
patent: 4073111 (1978-02-01), Warren
patent: 4148166 (1979-04-01), Toone
patent: 4380887 (1983-04-01), Lee
patent: D276076 (1984-10-01), Rassias et al.
patent: 4527373 (1985-07-01), Cruise
patent: 4748782 (1988-06-01), Johnson et al.
patent: D340775 (1993-10-01), Sauve
patent: D368313 (1996-03-01), Schulz, Jr.
patent: 6453625 (2002-09-01), Corbett
patent: 6513293 (2003-02-01), Miller
patent: D502554 (2005-03-01), Luaces
patent: D510773 (2005-10-01), Albert
patent: D551358 (2007-09-01), Deragon

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