US PATENT SUBCLASS 2 / 435
.~.~.~.~.~ Having antifog shield or lens

Current as of: June, 1999
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2 /   HD   APPAREL

455  DF  GUARD OR PROTECTOR {12}
410  DF  .~ For wearer's head {14}
15  DF  .~.~ Eye shields (e.g., hoodwinks or blinds, etc.) {4}
426  DF  .~.~.~ Goggles {7}
431  DF  .~.~.~.~ Included in shield for eyes {9}
435.~.~.~.~.~ Having antifog shield or lens {1}
436  DF  .~.~.~.~.~.~> By ventilation of shield {1}

DEFINITION

Classification: 2/435

(under subclass 431) Device in which the cover means prevents the condensation of moisture on any surface that is within the wearer's field of vision.

(1) Note. In this subclass condensation is prevented by a double lens, chemical coating of a lens surface, heating means, etc., these being only exemplary of the means herein.