US PATENT SUBCLASS 428 / 300.7
.~.~.~ Two or more layers

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}
300.7.~.~.~ Two or more layers {2}
301.1  DF  .~.~.~.~> Including a free metal or alloy constituent
301.4  DF  .~.~.~.~> At least one thermosetting synthetic polymeric material layer

DEFINITION

Classification: 428/300.7

Two or more layers:

(under subclass 297.4) Subject matter wherein the fiber-containing polymeric matrix is associated with one or more additional layers.