US PATENT SUBCLASS 428 / 455
.~ Of cork

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

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
455.~ Of cork {1}
456  DF  .~.~> Including natural oil or gum or rosin (e.g., linoleum, etc.)

DEFINITION

Classification: 428/455

(under subclass 411.1) Product in which at least one layer contains the bark of the cork oak.

(1) Note. Bark of trees other than the cork oak is considered "cellulosic*", thus patents claiming a laminate of

bark will be placed in the appropriate cellulosic subclasses, especially subclasses 532+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

532+, for a laminate including a layer containing bark not specified as cork and see (1) Note above.