US PATENT SUBCLASS 297 / 452.1
BOTTOM OR BACK

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

452.1BOTTOM OR BACK {12}
452.11  DF  .~> Directly connected bottom and back {2}
452.18  DF  .~> Framework {2}
452.21  DF  .~> Contoured bottom {2}
452.29  DF  .~> Contoured back {3}
452.38  DF  .~> Having a trim panel
452.39  DF  .~> Cantilevered bottom or back
452.4  DF  .~> Having a laterally adjustable dimension
452.41  DF  .~> Having fluent material
452.42  DF  .~> Including a ventilating means {2}
452.48  DF  .~> Cushioned {3}
452.63  DF  .~> Made of individual elongated members extending across a support frame (e.g., webs, straps, slats, stringed beads, etc.) {1}
452.65  DF  .~> Rigid or semirigid hollow shell

DEFINITION

Classification: 297/452.1

BOTTOM OR BACK:

(under the class definition) Device including a seating device having structure configured to support or engage a back or buttocks of a seated occupant.

(1) Note. A surface for supporting the buttocks of an occupant has been denominated in this schedule as a "bottom", and a surface for supporting a back of an occupant has been denominated a "back".

SEE OR SEARCH THIS CLASS, SUBCLASS:

14+, for a bottom and back connected to and storable in a wall or partition in nonuse position.

92+, for a combined bottom and back which interchange and reverse their respec-tive functions.

219.1+, for a detachably supplemental pad having a means for connecting the pad to a seating device.

230.1+, for an auxiliary back supported on or from another seat or seat component. 234+, for an auxiliary bottom supported on or from another seat or seat component.

252, for an auxiliary seat having a bottom and back with means for attaching the device to a bleacher seat or the like.

253, for an auxiliary bottom and back secured in position by means insertable in the crevice between the primary bottom and back.

254+, for an auxiliary back with means for connecting it to a primary back.

283.1+, for a bottom or back having a change-able or renewable support surface.

284.1+, for a bottom or back having means to alter its contour.

285+, for a back having means to resiliently support it in operative position.

311+, for a bottom having means to move or permit movement relative to its sup-porting structure.

353+, for a back having means to move or permit movement relative to support-ing structure.

354.1+, for a back having means to tilt or permit tilting.

391+, for a padded stool used to support an occupant in a seated position.

445.1+, for the combination of a bottom, back, and leg. SEE OR SEARCH CLASS

5, Beds,

652+, for a cushion.

52, Static Structures (e.g., Buildings) appropriate subclasses for a panel of more general utility even though defined or disclosed as being a component of a chair or seat, particularly

782+, for a composite panel with a disparate edge or stiffening member.

108, Horizontally Supported Planar Surfaces, appropriate subclasses for a horizontally supported planar surface of general utility.

160, Flexible or Portable Closure, Partition, or Panel, appropriate subclasses as the generic loci for a flexible panel.

182, Fire Escape, Ladder, or Scaffold,

135, for a seat attachable to a tree or utility pole, subclass 230 for a workman's kneeling base which may function as a bottom.

267, Spring Devices,

80+, for a spring panel of general utility as for a bottom, back, or cushion.