US PATENT SUBCLASS 442 / 406
.~.~.~ Containing inorganic strand or fiber material


Current as of: June, 1999
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442 /   HD   FABRIC (WOVEN, KNITTED, OR NONWOVEN TEXTILE OR CLOTH, ETC.)

327  DF  NONWOVEN FABRIC (I.E., NONWOVEN STRAND OR FIBER MATERIAL) {20}
402  DF  .~ Needled nonwoven fabric {1}
403  DF  .~.~ Containing at least two chemically different strand or fiber materials {4}
406.~.~.~ Containing inorganic strand or fiber material


DEFINITION

Classification: 442/406

Containing inorganic strand or fiber material:

(under subclass 403) Subject matter wherein the nonwoven fabric comprises two or more inorganic strand or fiber materials mechanically interengaged by needling.