Extension cord lock

Description

FIG. 1 is a front elevational view of the extension cord lock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

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

FIG. 7 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D231534 April 1974 Carder
4097105 June 27, 1978 Zumwalt
4183603 January 15, 1980 Donarummo
4221449 September 9, 1980 Shugart, Jr.
4643505 February 17, 1987 House et al.
4664463 May 12, 1987 Carmo
4773874 September 27, 1988 Kopeski, Jr.
4907984 March 13, 1990 Keller
Patent History
Patent number: D337309
Type: Grant
Filed: Apr 1, 1991
Date of Patent: Jul 13, 1993
Inventor: Fred E. Mally (Solon, IA)
Primary Examiner: Bernard Ansher
Assistant Examiner: P. Hyder
Attorney: Leon Gilden
Application Number: 7/677,957
Classifications