US PATENT SUBCLASS 558 / 481
.~.~ With preservative or stabilizer

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
480  DF  .~ Nitrate esters or chalcogen analogues thereof (i.e., compounds having (X=)N(=X)-X- bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon; the X's may be the same or diverse chalcogens) {3}
481.~.~ With preservative or stabilizer

DEFINITION

Classification: 558/481

(under subclass 480) Compounds in admixture with a preserving or stabilizing agent whose sole function is to prevent physical or chemical change.