US PATENT SUBCLASS 428 / 314.2
.~.~ Void shape specified (e.g., crushed, flat, round, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
314.2.~.~ Void shape specified (e.g., crushed, flat, round, etc.)

DEFINITION

Classification: 428/314.2

Void shape specified (e.g., crushed, flat, round, etc.):

(under subclass 304.4) Subject matter wherein the geometric configuration of the voids, whether regular or irregular, is specified in the claims.

(1) Note. Use of the term "crushed", designated a foam which has been treated, usually by pressure, to reduce the size of the foam cells and give the cell walls a broken and/or irregular configuration, is sufficient to place a patent in this subclass.