US PATENT SUBCLASS 558 / 462
.~.~.~ Carbon to carbon unsaturation containing

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}
303  DF  .~ Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {21}
435  DF  .~.~ Acyclic (e.g., purification of saturated nitriles, etc.) {9}
462.~.~.~ Carbon to carbon unsaturation containing {1}
463  DF  .~.~.~.~> Purification or recovery {3}

DEFINITION

Classification: 558/462

(under subclass 435) Compounds which contain carbon to carbon unsaturation.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]