US PATENT SUBCLASS 570 / 109
.~.~.~ Nitrogen containing hetero ring in preservative or stabilizer


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
102  DF  .~.~ With preservative or stabilizer {10}
109.~.~.~ Nitrogen containing hetero ring in preservative or stabilizer


DEFINITION

Classification: 570/109

Nitrogen containing hetero ring in preservative or stabilizer:

(under subclass 102) Composition wherein the preservative or stabilizer contains a ring having three or more members and containing at least one atom of each of carbon and nitrogen and optionally oxygen, sulfur, selenium, or tellurium as the only other ring members.