Retention washer

Description

FIG. 1 is a top rear perspective view of a retention washer, showing my new design;

FIG. 2 is a bottom right side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3671 September 1869 Livingston
D25819 July 1896 Foster
D34955 August 1901 Thatcher
D177731 May 1956 Hurley
D178961 October 1956 James
D241018 August 1976 Amicis
1432252 October 1922 Leicht
2704100 March 1955 Freeman
Patent History
Patent number: D287938
Type: Grant
Filed: Jun 15, 1984
Date of Patent: Jan 27, 1987
Inventor: Isaac Sachs (Chomedey, Laval, Quebec)
Primary Examiner: Bernard Ansher
Assistant Examiner: Linda Titolo
Attorneys: Robert Mitchell, Guy Houle, Paul Marcoux
Application Number: 6/621,098
Classifications
Current U.S. Class: D/9439; D/9440; D/9443