US PATENT SUBCLASS 428 / 314.8
.~.~.~ Specified thickness of void-containing component (absolute or relative), numerical cell dimension or density

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}
314.4  DF  .~.~ Voids specified as closed {1}
314.8.~.~.~ Specified thickness of void-containing component (absolute or relative), numerical cell dimension or density

DEFINITION

Classification: 428/314.8

Specified thickness of void-containing component (absolute or relative), numerical cell dimension or density:

(under subclass 314.4) Subject matter in which either the thickness of the void-containing component is claimed in terms of numbers or in relation to the thickness of another component, e.g., thicker, thinner, etc.), a numerical cell size (microns, etc.) or density (pounds per cubic foot, etc.) is claimed.