US PATENT SUBCLASS 528 / 364
.~.~ With sulfur-containing reactant

Current as of: June, 1999
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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
271  DF  .~ FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF {10}
364.~.~ With sulfur-containing reactant

DEFINITION

Classification: 528/364

(under subclass 271) Subject matter for a polymer derived from at least one carboxylic acid or derivative and at least one sulfur-containing reactant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

360, for a polymer derived from a sulfur-containing carboxylic acid or sulfur-containing derivative thereof.