US PATENT SUBCLASS 297 / 452.23
.~.~ Laterally extending contour

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

452.1  DF  BOTTOM OR BACK {12}
452.21  DF  .~ Contoured bottom {2}
452.23.~.~ Laterally extending contour {3}
452.24  DF  .~.~.~> Contoured rigid base {1}
452.26  DF  .~.~.~> Preshaped foam pad {1}
452.28  DF  .~.~.~> Custom fitted for a particular occupant

DEFINITION

Classification: 297/452.23

Laterally extending contour:

(under subclass 452.21) Device wherein the bottom includes a contoured surface configured to extend from one lateral edge

to another lateral edge of the bottom.