US PATENT SUBCLASS 374 / 108
.~.~.~ Degree-days

Current as of: June, 1999
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374 /   HD   THERMAL MEASURING AND TESTING

100  DF  TEMPERATURE MEASUREMENT (E.G., THERMOMETER) {13}
101  DF  .~ Composite temperature-related paramenter {3}
102  DF  .~.~ Time-temperature relationship (e.g., integral, deterioration, change) {4}
108.~.~.~ Degree-days

DEFINITION

Classification: 374/108

Degree-days:

(under subclass 102) Subject matter wherein the composite function is the product of the difference of the temperature from a reference temperature and the number of days elapsed.

(1) Note. The subject matter herein generally includes a clock running at a rate dependent upon the outdoor temperature difference below a reference temperature.

SEE OR SEARCH THIS CLASS, SUBCLASS:

109, for a climate related composite thermal measurement, in general.