US PATENT SUBCLASS 428 / 294.7
.~.~ Fiber embedded in a layer derived from a water-settable material (e.g., cement, gypsum, etc.)

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}
292.1  DF  .~ Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity {7}
294.7.~.~ Fiber embedded in a layer derived from a water-settable material (e.g., cement, gypsum, etc.)

DEFINITION

Classification: 428/294.7

Fiber embedded in a layer derived from a water-settable material (e.g., cement, gypsum, etc.):

(under subclass 292.1) Subject matter wherein the web or sheet comprises a water-settable material (e.g., cement, gypsum, etc.) which forms a distinct layer having fibers embedded therein.