04302971 is referenced by 39 patents and cites 12 patents.

A liquid crystal temperature indicator measures human body temperatures. The temperature indicator comprises a generally planar member for retention against an outer surface of a body. A number of deposits of liquid crystals, each activatable within a predetermined temperature range to be measured, are arranged behind temperature-indicating numerals. At a temperature within the predetermined temperature range, at least one of the deposits emits or reflects visible radiation to make corresponding numerals visible for indicating the surface temperature of the body. However, numerals are calibrated to the corresponding oral temperatures. A non-water soluble lacquer coating protects the deposits from moisture or humidity.

Title
Liquid crystal temperature indicator for measuring human body temperature
Application Number
940746
Publication Number
4302971
Application Date
November 5, 1979
Publication Date
December 1, 1981
Inventor
Catherine M Luk
Kowloon
HK
Agent
Laff Whitesel Conte & Saret
Assignee
Carice International Products
HK
IPC
G01K 11/12
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