US PATENT SUBCLASS 52 / 309.6
.~.~ Open cell

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  DF  .~ Foam {4}
309.6.~.~ Open cell

DEFINITION

Classification: 52/309.6

(under subclass 309.4) Structure wherein the cells or voids make up the porous, foam-like material are not closed spheres, but are open and interconnect with one another.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles,

322.7, for stock material of open cell foam.