Thermochromic thermometer

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Description

FIG. 1 is a front perspective view of a thermochromic thermometer showing my new design;

FIG. 2 is a rear elevational view thereof; and

FIG. 3 is a front elevational view of another form of my new design of FIGS. 1 and 2, the rear being identical to FIG. 2.

Referenced Cited
U.S. Patent Documents
D239261 March 1976 Van Kersen
D241920 October 1976 Van Kersen
3864976 February 1975 Parker
3951133 April 20, 1976 Reese
Patent History
Patent number: D250997
Type: Grant
Filed: Jan 10, 1977
Date of Patent: Feb 6, 1979
Assignee: American Thermometer Co., Inc. (Dayton, OH)
Inventor: Winfried Schuberth (Dayton, OH)
Primary Examiner: Nelson C. Holtje
Attorney: William R. Jacox
Application Number: 5/757,963
Classifications
Current U.S. Class: Thermometer (D10/57)
International Classification: D1004;