Retractable blade utility knife

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Description

FIG. 1 is a perspective view of a retractable blade utility knife, with the blade in a retracted position, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left end elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof, with the blade in an extended position.

Referenced Cited
U.S. Patent Documents
D240500 July 1976 Richards
D249325 September 12, 1978 Rollband
D296297 June 21, 1988 Weimann et al.
D319378 August 27, 1991 Wilcox
D336029 June 1, 1993 Ragland et al.
3063147 November 1962 Paparelli
4226020 October 7, 1980 Quenot et al.
4813132 March 21, 1989 Castelluzzo
4936014 June 26, 1990 Shaanan et al.
5121544 June 16, 1992 Gilbert
Patent History
Patent number: D349227
Type: Grant
Filed: May 19, 1993
Date of Patent: Aug 2, 1994
Assignee: Millers Falls Tool Company (Cincinnati, OH)
Inventors: H. Nicholas Ragland (Cincinnati, OH), James F. Mariol (Cincinnati, OH)
Primary Examiner: Bernard Ansher
Assistant Examiner: Philip Hyder
Law Firm: Killworth, Gottman, Hagan & Schaeff
Application Number: 0/8,583
Classifications
Current U.S. Class: D 8/99