US PATENT SUBCLASS 428 / 443
.~ Of asbestos


Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
443.~ Of asbestos {2}
444  DF  .~.~> With metal layer
445  DF  .~.~> With cellulosic layer


DEFINITION

Classification: 428/443

(under subclass 411.1) Product in which at least one layer includes a fibrous mineral of a magnesium, calcium or iron silicate (e.g., amphibole, serpentine and anthophyllite, etc.).

(1) Note. For the purposes of this subclass, the following terms, as well as the word "asbestos*" itself, are deemed to be definitive of a layer as asbestos - containing: uralite, tremolite actinolite crocidolite, chrysotil amosite or pyrozene.

SEE OR SEARCH CLASS

442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, etc.),

137, for a coated or impregnated asbestos fabric and appropriate subclasses for a laminate comprising fabric made from inorganic fibers such as asbestos.