US PATENT SUBCLASS 297 / 452.43
.~.~ Supplemental ventilating pad

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

452.1  DF  BOTTOM OR BACK {12}
452.42  DF  .~ Including a ventilating means {2}
452.43.~.~ Supplemental ventilating pad {2}
452.44  DF  .~.~.~> Wire spring element between pads' layers
452.45  DF  .~.~.~> Projecting elements

DEFINITION

Classification: 297/452.43

Supplemental ventilating pad:

(under subclass 452.42) Device wherein the ventilating means is located on or within a cushion configured to rest on an occupant-supporting surface of the bottom or back of the seating device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219.1+, for detachable supplemental nonventilating pad having means to connect the pad to a seating device.