Retractable blade utility knife

Description

FIG. 1 is a front elevational view of a retractable blade utility knife showing my new design therefor;

FIG. 2 is a front elevational view thereof, shown with the hooked blade in an extended position;

FIG. 3 is a front elevational view thereof, shown with the straight blade in an extended position;

FIG. 4 is a perspective view of FIG. 3;

FIG. 5 is a top plan view of FIG. 3;

FIG. 6 is another front elevational view thereof; wherein the rear view is a mirror image thereof;

FIG. 7 is a bottom plan view of FIG. 6;

FIG. 8 is a left side elevational view of FIG. 6; and,

FIG. 9 is a right side elevational view of FIG. 6.

Referenced Cited
U.S. Patent Documents
D249325 September 12, 1978 Rollband
D259697 June 30, 1981 Brizzolara, Jr.
D296297 June 21, 1988 Weimann et al.
D310474 September 11, 1990 Bartsch et al.
D319378 August 27, 1991 Wilcox
3888002 June 1975 Graham
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4578865 April 1, 1986 Keller
4663845 May 12, 1987 Weimann
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4953293 September 4, 1990 Sterlacci
4974320 December 4, 1990 Pelletier
Patent History
Patent number: D355345
Type: Grant
Filed: Nov 29, 1993
Date of Patent: Feb 14, 1995
Inventor: Norbert F. Drust (Bronson, MI)
Primary Examiner: Theodore M. Shooman
Assistant Examiner: Philip Hyder
Attorney: David L. Baker
Application Number: 0/15,746
Classifications
Current U.S. Class: D 8/99