Doorknob

Description

FIG. 1 is a back view of a doorknob of the new design;

FIG. 2 is a top view of the doorknob of FIG. 1, the bottom view being identical;

FIG. 3 is a front view of the doorknob of FIG. 1;

FIG. 4 is a perspective view of the doorknob of FIG. 1;

FIG. 5 is a back view of a second embodiment of a doorknob of the new design;

FIG. 6 is a top view of the doorknob of FIG. 5, the bottom view being identical;

FIG. 7 is a front view of the doorknob of FIG. 5; and,

FIG. 8 is a perspective view of the doorknob of FIG. 5.

The portions of the Figures shown in phantom lines are not part of the claimed design but are for illustration only.

Claims

The ornamental design for a doorknob, as shown and described.

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Inventors:	Van Handel; Mark (Milwaukee, WI)
Assignee:	Master Lock Company (Oak Creek, WI)
Appl. No.:	D/203,383
Filed:	April 14, 2004

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Current U.S. Class:	D8/310
Current International Class:	0806
Field of Search:	;D8/301,302,305,DIG.2,307,310,341,338,350,352,379 ;D23/250,251,254 ;292/347,357 ;16/402,412,110.1,414,417,433,441,442,DIG.30,903 ;4/691,234,246.1

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References Cited [Referenced By]

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U.S. Patent Documents

D43534	February 1913	Hawley
D105146	June 1937	Sinko
D164606	October 1951	Schlage
D173850	January 1955	Ohno
D179220	November 1956	Russell
D179458	December 1956	Ohno
D179679	February 1957	Ellis
D180188	April 1957	Herider
2797950	July 1957	Michael
D182623	April 1958	Russell
D186083	September 1959	Mair
D199922	December 1964	Schlage
D225393	December 1972	Giandomenico
D262773	January 1982	Wansbrough et al.
D263554	March 1982	Wasbrough et al.
D271464	November 1983	Carlson
D283800	May 1986	Beerens
D337813	July 1993	Levien
D348602	July 1994	Carsello
D355838	February 1995	Chieda
D368640	April 1996	Sonnenleiter
D369086	April 1996	Bergen
D385956	November 1997	Doughty et al.
5685583	November 1997	Mack et al.
D396179	July 1998	Burns et al.
D396180	July 1998	Burns et al.
D401834	December 1998	Burns et al.
D403750	January 1999	Fabian
D405216	February 1999	Porter et al.
D405995	February 1999	Harris
D427291	June 2000	Milrud et al.
D429455	August 2000	Burns et al.
D454049	March 2002	LaPlume et al.
D467488	December 2002	Su
D485795	January 2004	Murray
D492887	July 2004	Wu

Other References

McGraw-Hill Construction Sweets Catalog, 1996., p. 30. (1 page). . Sager Hardware Catalog, 1937.,pp. 30A, 31A, & 257 (3 pages)..

Primary Examiner: Deshmukh; Prabhakar
Assistant Examiner: McCormick; Jean E.
Attorney, Agent or Firm: Calfee, Halter & Griswold, LLP