Knife sharpener


FIG. 1 is a top plan view of a knife sharpener showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being the same in appearance as the right side;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D241504 September 1976 Krusche et al.
D276886 December 25, 1984 Carter
Foreign Patent Documents
119186 March 1927 CHX
Patent History
Patent number: D309414
Type: Grant
Filed: Apr 11, 1988
Date of Patent: Jul 24, 1990
Inventor: Kiyoshi Shimizu (Miki-city Hyogo)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Attorneys: Bruce L. Adams, Van C. Wilks
Application Number: 7/180,017
Current U.S. Class: D 8/93; D 8/63