US PATENT SUBCLASS 5 / 730
.~.~ Comprising a firmness altering slit, groove, cutout, or cavity

Current as of: June, 1999
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5 /   HD   BEDS

690  DF  MATTRESS (FOR WHOLE BODY) {23}
727  DF  .~ Sectional with regard to firmness {3}
730.~.~ Comprising a firmness altering slit, groove, cutout, or cavity

DEFINITION

Classification: 5/730

Comprising a firmness altering slit, groove, cutout, or cavity:

(under subclass 727) Sectional firmness mattress in which a narrow aperturelike portion is provided on the pad top supporting surface, or through the mattress in order to provide supporting portions of different characteristics in the pad.

SEE OR SEARCH THIS CLASS, SUBCLASS:

724, for mattresses with channels provided inside the mattress to facilitate ventilation by providing a path for air to move in and out of the mattress.

736, for mattresses having hills or peaks, separated by valleys.