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 rear, the right side, and the left side 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
D312563 December 4, 1990 Hillinger
D358316 May 16, 1995 Markwart et al.
D363012 October 10, 1995 Humphries
D376305 December 10, 1996 Kung
D404277 January 19, 1999 Shiao
D405335 February 9, 1999 Lin
D412096 July 20, 1999 Kung et al.
Patent History
Patent number: D423900
Type: Grant
Filed: Apr 14, 1999
Date of Patent: May 2, 2000
Inventor: Kun-Chin Hung (Taichung)
Primary Examiner: Philip S. Hyder
Application Number: 0/103,373
Classifications
Current U.S. Class: D 8/83; D8/87; D8/85
International Classification: 0804;