Building units and construction elements – Prefabricated unit – Closure
Design Patent
1999-03-08
2001-02-27
Zarfas, Louis S. (Department: 2914)
Building units and construction elements
Prefabricated unit
Closure
Design Patent
active
D0438312
CLAIM:
The ornamental design for locking device, as shown and described.
REFERENCES:
patent: D. 284512 (1986-07-01), Smith
patent: D. 358220 (1995-05-01), Detassis
patent: D. 427879 (2000-07-01), Loy et al.
patent: D. 428498 (2000-07-01), Loy et al.
patent: 1049587 (1913-01-01), McDonald
patent: 2144718 (1939-01-01), Gersbach
patent: 6012252 (2000-01-01), Kocznar et al.
Loy Oliver Michael
Umundum Dietmar
Delehanty Robert A.
Norris McLaughlin & Marcus P.A.
Systems AG
Zarfas Louis S,.
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