Window heater

- Koehring Company
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Description

FIG. 1 is a top front perspective view of a window heater, showing our new design;

FIG. 2 is a top rear perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top front perspective view of a second embodiment thereof;

FIG. 6 is a top rear perspective view of said second embodiment thereof;

FIG. 7 is a bottom perspective view of said second embodiment thereof;

FIG. 8 is a left side elevation view of said second embodiment thereof.

Referenced Cited
U.S. Patent Documents
2673558 March 1954 Budlane
2744516 May 1956 Hubbard
2864359 December 1958 Vaughn
2964034 December 1960 Nordholt et al.
Patent History
Patent number: D255599
Type: Grant
Filed: Apr 4, 1977
Date of Patent: Jun 24, 1980
Assignee: Koehring Company (Milwaukee, WI)
Inventors: Eugene C. Briggs (Bowling Green, KY), Robert F. Shaftner (Bowling Green, KY), Harry J. Giambrone (Dayton, OH)
Primary Examiner: Catherine E. Kemper
Attorney: Jerome P. Bloom
Application Number: 5/784,054
Classifications
Current U.S. Class: D23/93
International Classification: D2303;