US PATENT SUBCLASS 297 / 452.14
.~.~.~ Rigid or semirigid plastic panel

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

452.1  DF  BOTTOM OR BACK {12}
452.11  DF  .~ Directly connected bottom and back {2}
452.12  DF  .~.~ One-piece panel {2}
452.14.~.~.~ Rigid or semirigid plastic panel {1}
452.15  DF  .~.~.~.~> Including means to provide or enhance resiliency (e.g., slits, grooves, etc.)

DEFINITION

Classification: 297/452.14

Rigid or semirigid plastic panel:

(under subclass 452.12) Device wherein the panel is a stiff panel made of a material formed of synthetic-type stock; e.g., resins, polymers, nylon, fiberglass, etc.