US PATENT SUBCLASS 5 / 230
.~.~ Of fabrics and springs

Current as of: June, 1999
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5 /   HD   BEDS

131  DF  BEDSTEADS {6}
400  DF  .~ Having bottom {9}
230.~.~ Of fabrics and springs {5}
231  DF  .~.~.~> Underslung spring supports
232  DF  .~.~.~> Yielding rail
233  DF  .~.~.~> Marginal spring tension
234  DF  .~.~.~> Leaf-spring supports
235  DF  .~.~.~> Connecting fabric to tops of coil springs

DEFINITION

Classification: 5/230

(under subclass 131) Devices comprising bed bottoms in which the body or mattress supporting surface is a fabric complete in itself supported by springs either arranged to give support by exerting marginal tension or arranged beneath the fabric, or both.

SEE OR SEARCH THIS CLASS, SUBCLASS:

186.1+, for the fabric structure itself. Mere arrangements of horizontal helical margin connectors are not sufficient to remove the bottom from those subclasses.

199, for special arrangements of such helical margin connectors.

, 229, for subcoils and reinforced localized parts of a fabric bed bottom.

249+, for sectional and collapsible frames for springs.

267+, for an incomplete or coarse fabric dispersed over coil springs consisting, for example, of guys primarily to connect together the top coils. SEE OR SEARCH CLASS

297, Chairs and Seats,

452.16+, for a spring bottom or back in which the springs are covered with upholstery.