Screwdriver

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Description

FIG. 1 is a perspective view of a screwdriver showing my invention;

FIG. 2 is a front elevational view thereof, wherein the left side, right side, and rear views are identical thereto;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D256546 August 26, 1980 Holland-Letz
D261610 November 3, 1981 Fee et al.
D307236 April 17, 1990 Cascio et al.
D346943 May 17, 1994 Haberstroh
D383660 September 16, 1997 Anderson
D400420 November 3, 1998 Shiao
4951533 August 28, 1990 Hillinger
5390572 February 21, 1995 Gakhar et al.
Patent History
Patent number: D412821
Type: Grant
Filed: Aug 17, 1998
Date of Patent: Aug 17, 1999
Inventor: Chin-Tan Huang (Ta-Li City, Taichung Hsien)
Primary Examiner: Philip S. Hyder
Law Firm: Rosenberg, Klein & Bilker
Application Number: 0/92,333
Classifications
Current U.S. Class: D 8/82; D8/83
International Classification: 0804;