Barrier block

Details Barrier block Barrier block

2001-08-31

2002-05-28

Zarfas, Louis S. (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0457971

CLAIM:
The ornamental design for a barrier block, as shown and described.

REFERENCES:
patent: 18261 (1857-09-01), Smith
patent: 3618279 (1971-11-01), Sease
patent: D243855 (1977-03-01), Hynes
patent: 4124961 (1978-11-01), Habegger
patent: 4436447 (1984-03-01), Crowe
patent: 4965979 (1990-10-01), Larrivee et al.
patent: 5186883 (1993-02-01), Beall, II
patent: 5402609 (1995-04-01), Kelley, Jr.
patent: 5421135 (1995-06-01), Stevens et al.
patent: 5471808 (1995-12-01), DePieri et al.
patent: 5507127 (1996-04-01), Gates
patent: 5647185 (1997-07-01), Forlini
patent: D387431 (1997-12-01), Tremblay
patent: 5934037 (1999-08-01), Bundra
patent: 528025 (1954-04-01), None

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