US PATENT SUBCLASS 558 / 393
.~.~.~.~.~.~ Carbon to carbon unsaturation, chalcogen, or additional nitrogen in the chain

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}
392  DF  .~.~.~.~.~ Having -C(=X)-, also in the chain, bonded directly to the nitrogen (wherein X is chalcogen) {1}
393.~.~.~.~.~.~ Carbon to carbon unsaturation, chalcogen, or additional nitrogen in the chain

DEFINITION

Classification: 558/393

(under subclass 392) Compounds wherein the chain also has carbon to carbon unsaturation, an additional nitrogen, or chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

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