US PATENT SUBCLASS 558 / 391
.~.~.~.~.~ Carbon, also in the chain, double bonded to the nitrogen

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}
388  DF  .~.~ Benzene ring attached indirectly to the cyano group by acyclic nonionic bonding {5}
389  DF  .~.~.~ Non-carbon atom in acyclic chain between the benzene ring and the cyano group {3}
390  DF  .~.~.~.~ Nitrogen in the acyclic chain {3}
391.~.~.~.~.~ Carbon, also in the chain, double bonded to the nitrogen

DEFINITION

Classification: 558/391

(under subclass 390) Compounds wherein the nitrogen is double

bonded to carbon, which is also a member of the chain.

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