US PATENT SUBCLASS 528 / 386
.~.~.~.~ With reactant containing only hydrogen and carbon atoms

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}
373  DF  .~ FROM SULFUR-CONTAINING REACTANT {5}
381  DF  .~.~ From inorganic sulfur-containing reactant {4}
382  DF  .~.~.~ Sulfur dioxide is a reactant {2}
386.~.~.~.~ With reactant containing only hydrogen and carbon atoms

DEFINITION

Classification: 528/386

(under subclass 382) Subject matter wherein sulfur dioxide is reacted with at least one material which contains only atoms of hydrogen and carbon.