US PATENT SUBCLASS 340 / 604
.~.~.~ Wetness

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}
603  DF  .~.~ Fluent material {7}
604.~.~.~ Wetness

DEFINITION

Classification: 340/604

Wetness:

(under subclass 603) Subject matter responsive to the presence of water or water vapor.

(1) Note. The water or vapor may be entrained in a solid, flowable material, or another liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

602, for such water detection as, or as related to, a meteorological condition.

603, for an alarm system responsive to a liquid contaminant other than water.

SEE OR SEARCH CLASS

73, Measuring and Testing,

73+, for measurement of the moisture content of material. 324, Electricity: Measuring and Testing,

664+, and 694+ for moisture content measurement by capacitance and resistance, respectively.