Novelty thermoresponsive liquid crystal indicating device

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Description

FIG. 1 is a top plan view of a novelty thermoresponsive liquid crystal indicating device showing our new design;

FIG. 2 is a right front perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
3406971 October 1968 Koff
3914890 October 1975 Behlen
4072055 February 7, 1978 Elliott
Patent History
Patent number: D265800
Type: Grant
Filed: May 14, 1979
Date of Patent: Aug 17, 1982
Inventors: Charles Butera (Escondido, CA), Ingela Butera (Escondido, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Arthur F. Holz
Application Number: 6/38,526
Classifications
Current U.S. Class: Thermometer (D10/57)
International Classification: D1004;