US PATENT SUBCLASS 428 / 322.7
.~.~ Differentially filled foam, filled plural layers, or filled layer with coat of filling material

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}
320.2  DF  .~ Composite having a component wherein a constituent is liquid or is contained within preformed walls (e.g., impregnant-filled, previously void containing component, etc.) {3}
322.7.~.~ Differentially filled foam, filled plural layers, or filled layer with coat of filling material

DEFINITION

Classification: 428/322.7

Differentially filled foam, filled plural layers, or filled layer with coat of filling material:

(under subclass 320.2) Subject matter wherein the structure of a foamed material bridges two or more distinct components, wherein a solidified impregnant permeates two or more adjacent previously porous components of an assembled composite or wherein such an impregnant permeates a previously porous component and also coats an outside surface of the component.