US PATENT SUBCLASS 340 / 587
.~.~.~ False alarm resistant

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
584  DF  .~.~ Thermal {8}
587.~.~.~ False alarm resistant

DEFINITION

Classification: 340/587

False alarm resistant:

(under subclass 584) Subject matter wherein the device has provision to prevent an indication due to extraneous causes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

529, for alarm systems having a time delay to permit indication only of a persistent condition.