Temperature level alarm

Description

FIG. 1 is a front perspective view of a temperature level alarm embodying our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a top plan view thereof, the bottom being substantially identical in appearance with the top;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is an end elevational view thereof showing the end opposite that shown in FIG. 6.

Referenced Cited
U.S. Patent Documents
D269256 June 7, 1983 McMillan
3753259 August 1973 Donovan
3959787 May 25, 1976 Messmanne
Other references
  • Electronics Today International, 12/1977, p. 30, Freezer Alarm in middle of page.
Patent History
Patent number: D275842
Type: Grant
Filed: Oct 4, 1982
Date of Patent: Oct 9, 1984
Inventors: Donald G. Gilbert (Derby, KS), Roy E. Hastings (Wichita, KS)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Suzanne N. Gitlin
Law Firm: Kokjer, Kircher, Bradley, Wharton, Bowman & Johnson
Application Number: 6/432,531
Classifications
Current U.S. Class: D10/106