US PATENT SUBCLASS 5 / 659
.~ For placement below a mattress and above its supporting structure (e.g., bed boards)

Current as of: June, 1999
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5 /   HD   BEDS

658  DF  ATTACHMENT OR ACCESSORY {8}
659.~ For placement below a mattress and above its supporting structure (e.g., bed boards) {1}
660  DF  .~.~> Adapted to incline mattress or portion thereof

DEFINITION

Classification: 5/659

For placement below a mattress and above its supporting structure (e.g., bed boards):

(under subclass 658) Subject matter comprising an attachment or accessory adapted to be removably positioned between a mattress and its supporting structure, for the purpose of altering the support characteristics of the mattress.

(1) Note. This subclass includes bed boards that are generally planar and firm elements that are removably positioned below a mattress and above its supporting surface (e.g., box spring) for the purpose of improving the supporting characteristics of the mattress, as by making the mattress firmer.