US PATENT SUBCLASS 428 / 356
.~.~.~ Including metal or compound thereof or natural rubber

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}
343  DF  .~ Adhesive outermost layer {8}
355 R  DF  .~.~ Adhesive compositions {7}
356.~.~.~ Including metal or compound thereof or natural rubber

DEFINITION

Classification: 428/356

(under subclass 355) Product in which an ingredient of the adhesive composition comprises (1) rubber* from a natural source or (2) a metal* in either its free or combined state.

(1) Note. The term "reclaimed" rubber is considered to be natural for purposes of this subclass unless it is clear from the disclosure that a synthetic rubber is intended, in which case classification in subclass 355 is indicated.

(2) Note. If it is not clear whether natural or synthetic rubber is intended from either the disclosure or claims, then classification is in subclass 355 on the basis of synthetic rubber, with a cross reference, if necessary, to subclass 356.