US PATENT SUBCLASS 428 / 160
.~.~.~.~ Polyurethane

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  DF  .~.~.~ Component comprises a polymer (e.g., rubber, etc.) {1}
160.~.~.~.~ Polyurethane

DEFINITION

Classification: 428/160

(under subclass 159) Product in which the polymer comprises poly (amido ester) or polyisocyanate, commonly known as polyurethane.