US PATENT SUBCLASS 428 / 300.4
.~.~.~ Two or more chemically different fibers


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}
297.4  DF  .~.~ Fiber embedded in or on the surface of a polymeric matrix {5}
300.4.~.~.~ Two or more chemically different fibers


DEFINITION

Classification: 428/300.4

Two or more chemically different fibers:

(under subclass 297.4) Subject matter wherein the fibers include at least two chemically different fibers.