Building units and construction elements – Prefabricated unit – Closure
Design Patent
1999-10-20
2001-08-07
Zarfas, Louis S. (Department: 2914)
Building units and construction elements
Prefabricated unit
Closure
Design Patent
active
D0446317
CLAIM:
The ornamental design for a crawl space door and frame with exterior flange, as shown and described.
REFERENCES:
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patent: 2607727 (1952-08-01), Butler
patent: 4656797 (1987-04-01), Marquart
patent: 4788805 (1988-12-01), Shaw
“Access Panel Doors”; #701-E, #702, #701, p. 20; Sweet's Catalog, 1962; manufactured by Hohmann & Barnard, Inc.; Woodside NY.*
“NB Roof Scuttle for Steep Stair”, p. 6, Bilco Doors for Special Services catalog, 1981.
Jackson James S.
Sykes William G.
Delehanty Robert A.
Zarfas Louis S,.
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