US PATENT SUBCLASS 428 / 317.9
.~.~ Void-containing component contains also a solid fiber or solid particle

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

221  DF  WEB OR SHEET CONTAINING STRUCTURALLY DEFINED ELEMENT OR COMPONENT {9}
304.4  DF  .~ Composite having voids in a component (e.g., porous, cellular, etc.) {14}
317.9.~.~ Void-containing component contains also a solid fiber or solid particle

DEFINITION

Classification: 428/317.9

Void-containing component contains also a solid fiber or solid particle:

(under subclass 304.4) Subject matter in which a solid particle or solid fiber is dispersed in the void-containing component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

305.5, for such subject matter where the fiber or particle is of a chemically effective material.

311.11+, for such subject matter where fibers are present in such amount and arrangement as to constitute a continuous matrix.