Frozen lock heater

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Description

FIG. 1 is a perspective view of a frozen lock heater showing my new design.

FIG. 2 is a front end elevation view thereof.

FIG. 3 is a rear end elevation view thereof.

FIG. 4 is a right side elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D270095 August 9, 1983 Palmer
2965741 December 1960 Blazina
4822976 April 18, 1989 Buranathanit
Foreign Patent Documents
2810016 September 1979 DEX
2179530 March 1987 GBX
Patent History
Patent number: D321047
Type: Grant
Filed: May 21, 1990
Date of Patent: Oct 22, 1991
Inventor: Cyrus Haghkar (Norristown, PA)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorney: Terry M. Gernstein
Application Number: 7/525,643