US PATENT SUBCLASS 568 / 36
.~.~.~ Nitrogen or plural sulfurs containing

Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
18  DF  .~ SULFUR CONTAINING {9}
27  DF  .~.~ Oxygen bonded directly to sulfur (e.g., sulfoxides, etc.) {3}
36.~.~.~ Nitrogen or plural sulfurs containing

DEFINITION

Classification: 568/36

(under subclass 27) Compounds which contain nitrogen or at least two sulfur atoms.