US PATENT SUBCLASS 297 / 452.55
.~.~ Including a support panel (e.g., pan-type seat, etc.)

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

452.1  DF  BOTTOM OR BACK {12}
452.48  DF  .~ Cushioned {3}
452.55.~.~ Including a support panel (e.g., pan-type seat, etc.) {2}
452.56  DF  .~.~.~> Flexible panel (e.g., fabric or elastomeric sheet, web, etc.)
452.57  DF  .~.~.~> Encapsulated panel

DEFINITION

Classification: 297/452.55

Including a support panel ( e.g., pan-type seat, etc.):

(under subclass 452.48) Device in which the cushioned bottom or back includes a platform or continuous surface made of rigid or flexible material of uniform thickness.