US PATENT SUBCLASS 5 / 728
.~.~ Comprising horizontal firm slatlike or platelike inserts

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}
728.~.~ Comprising horizontal firm slatlike or platelike inserts

DEFINITION

Classification: 5/728

Comprising horizontal firm slatlike or platelike inserts:

(under subclass 727) Sectional firmness mattress containing permanent or removable, generally rigid slats or plates positioned only in selected portions of the mattress to selectively alter the firmness of the mattress.

SEE OR SEARCH THIS CLASS, SUBCLASS:

701, for mattresses with homogeneous or constant support characteristics across its top surface that contain rigid plates.