US PATENT SUBCLASS 297 / 452.32
.~.~.~ Preshaped cushioning material

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

452.1  DF  BOTTOM OR BACK {12}
452.29  DF  .~ Contoured back {3}
452.3  DF  .~.~ For lower back; i.e., lumbar region {2}
452.32.~.~.~ Preshaped cushioning material

DEFINITION

Classification: 297/452.32

Preshaped cushioning material:

(under subclass 452.3) Device wherein the lower back support is a preshaped contoured surface made of cushioning material.

(1) Note. A cushion of uniform thickness placed over a rigid or semirigid contoured base is found in subclass 452.31.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219.1+, for detachable supplemental pad hav-ing means for connecting the pad to a seating device.