US PATENT SUBCLASS 428 / 159
.~.~.~ Component comprises a polymer (e.g., rubber, etc.)

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

98  DF  STRUCTURALLY DEFINED WEB OR SHEET (E.G., OVERALL DIMENSION, ETC.) {20}
156  DF  .~ Including variation in thickness {7}
158  DF  .~.~ Foamed or cellular component {1}
159.~.~.~ Component comprises a polymer (e.g., rubber, etc.) {1}
160  DF  .~.~.~.~> Polyurethane

DEFINITION

Classification: 428/159

(under subclass 158) Product which comprises a compound of relatively large molecules and high molecular weight, whose molecules consist of recurring smaller chain structural units.

(1) Note. Examples of polymers under this definition are: natural or synthetic rubber, polyester, polyamide, etc.