Utility knife

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Description

FIG. 1 is a right, front perspective view of a utility knife showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG 4 is a front elevational view thereof, the rear being flat and unornamented.

Referenced Cited
U.S. Patent Documents
D258310 February 17, 1981 La Haye
1552771 September 1925 Sparks
3080653 March 1963 Dolin
4002207 January 11, 1977 Bartz
Patent History
Patent number: D313540
Type: Grant
Filed: Feb 19, 1988
Date of Patent: Jan 8, 1991
Inventors: John W. Toor (Palo Alto, CA), James E. Sacherman (Palo Alto, CA)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Law Firm: Harrison & Eakin
Application Number: 7/158,144
Classifications
Current U.S. Class: D 8/98; D/8107