US PATENT SUBCLASS 428 / 36.5
.~.~ Foam or porous material containing

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

34.1  DF  HOLLOW OR CONTAINER TYPE ARTICLE (E.G., TUBE, VASE, ETC.) {7}
35.7  DF  .~ Polymer or resin containing (i.e., natural or synthetic) {9}
36.5.~.~ Foam or porous material containing

DEFINITION

Classification: 428/36.5

Foam or porous material containing:

(under subclass 35.7) Article* which contains a foam or porous material.

(1) Note. A porous material is cellular in that is has small open or interconnected voids.