Knife sharpener

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Description

FIG. 1 is a perspective view of a knife sharpener, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Claims

The ornamental design for a knife sharpener, as shown.

Referenced Cited
U.S. Patent Documents
5291805 March 8, 1994 Byers et al.
D367598 March 5, 1996 Fortenberry
D369081 April 23, 1996 Byers et al.
5673599 October 7, 1997 Byers et al.
D387262 December 9, 1997 Byers et al.
D394596 May 26, 1998 Byers et al.
D453290 February 5, 2002 Huang
Patent History
Patent number: D475599
Type: Grant
Filed: Sep 23, 2002
Date of Patent: Jun 10, 2003
Inventor: Pei-Hsiung Liu (Taichung)
Primary Examiner: Philip S. Hyder
Attorney, Agent or Law Firms: Alan Kamrath, Rider, Bennett, Egan & Arundel, LLP
Application Number: 29/167,902
Classifications
Current U.S. Class: D8/93
International Classification: 0805;