Door knob

Details Door knob Door knob

2007-11-08

2008-10-28

Reid, Stella M. (Department: 2912)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0579307

CLAIM:
The ornamental design for a door knob, as shown and described.

REFERENCES:
patent: D16515 (1886-02-01), Hall
patent: D222873 (1972-01-01), Palson
patent: D231318 (1974-04-01), James
patent: D270642 (1983-09-01), Watts
patent: D291053 (1987-07-01), Decursu
patent: D301681 (1989-06-01), Jans
patent: D329911 (1992-09-01), Yost
patent: D372658 (1996-08-01), Decursu et al.
patent: D435210 (2000-12-01), Hussaini
patent: D472128 (2003-03-01), Heffel
patent: D527611 (2006-09-01), Sato
patent: D551937 (2007-10-01), Krumpe et al.

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