Thermochromic thermometer


FIG. 1 is a front elevational view of a thermometer showing my new design with a typical temperature readout character activated;

FIG. 2 is a side elevational view thereof, the other side being identical thereto;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a front elevational view of another embodiment of my new design of FIG. 1 wherein another type of typical temperature readout character has been substituted for that of FIG. 1; and the rear and side views thereof are identical to FIGS. 2 and 3.

Referenced Cited
U.S. Patent Documents
D236253 August 1975 Parker
2313810 March 1943 Dalton
2787230 April 1957 Luce
3194669 July 1965 Koch
3465590 September 1969 Kluth
3597976 August 1971 Fryar
3898354 August 1975 Parker
Patent History
Patent number: D244360
Type: Grant
Filed: Sep 8, 1975
Date of Patent: May 17, 1977
Inventor: Philip L. Van Kersen (Indianapolis, IN)
Primary Examiner: Nelson C. Holtje
Attorney: Harold R. Woodard
Application Number: 5/611,303
Current U.S. Class: Thermometer (D10/57)
International Classification: D1004;