US PATENT SUBCLASS 558 / 403
.~.~.~.~ Nitrogen, except as nitro or nitroso, bonded directly to the benzene ring

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}
401  DF  .~.~.~ Benzene ring and cyano connected by a chain consisting of two carbons multiple bonded to each other {2}
403.~.~.~.~ Nitrogen, except as nitro or nitroso, bonded directly to the benzene ring

DEFINITION

Classification: 558/403

(under subclass 401) Compounds wherein the benzene ring is bonded directly to nitrogen, except as nitro or nitrosos.

(1) Note. A nitro or nitroso group may be bonded directly to the benzene ring, provided that a nitrogen which is not part of a nitro or nitrosos group is also bonded directly thereto.

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