US PATENT SUBCLASS 52 / 309.4
.~ Foam

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

309.1  DF  WITH SYNTHETIC RESINOUS COMPONENT {4}
309.4.~ Foam {4}
309.5  DF  .~.~> Adhesive
309.6  DF  .~.~> Open cell
309.7  DF  .~.~> With an embedded, elongated component
309.8  DF  .~.~> Adjacent nonporous layer {2}

DEFINITION

Classification: 52/309.4

(under subclass 309.1) Structure wherein the synthetic resinous component is made of porous foam-like material.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles, appropriate subclasses for laminations containing foam;

69+, for a foam or cellular material, the cells being filled with a gas other than air.