Window security guard

Details Window security guard Window security guard

2000-05-31

2001-05-01

Clark, Doris (Department: 2914)

Building units and construction elements

Prefabricated unit

Closure

Design Patent

active

D0441460

CLAIM:
The ornamental design for a window security guard, as shown and described.

REFERENCES:
patent: D. 269380 (1983-06-01), d'Avila
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patent: D. 380275 (1997-06-01), Chitty
patent: 2668729 (1954-02-01), Watters
patent: 3953939 (1976-05-01), Klein
patent: 4475309 (1984-10-01), Porter
patent: 4478002 (1984-10-01), English
patent: 4575965 (1986-03-01), Iversen
patent: 4631862 (1986-12-01), Gallardo
patent: 4835906 (1989-06-01), Collin
patent: 4848030 (1989-07-01), Bennett
patent: 5428924 (1995-07-01), Pifer
patent: 5657578 (1997-08-01), Thompson

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