US PATENT SUBCLASS 558 / 449
.~.~.~.~ Cyano is attached directly or indirectly by nonionic bonding to carbon that is multiple bonded to another carbon

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}
447  DF  .~.~.~ Plural carbons bonded directly to the same oxygen {3}
449.~.~.~.~ Cyano is attached directly or indirectly by nonionic bonding to carbon that is multiple bonded to another carbon

DEFINITION

Classification: 558/449

(under subclass 447) Compounds wherein carbon, which is multiple bonded to another carbon, is attached directly or indirectly to the cyano group by nonionic bonding.

(1) Note. An example of a compound provided for herein is: [figure]