US PATENT SUBCLASS 428 / 316.6
.~.~ Plural void-containing components

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}
316.6.~.~ Plural void-containing components

DEFINITION

Classification: 428/316.6

Plural void-containing components:

(under subclass 304.4) Subject matter having more than one component containing voids.