US PATENT SUBCLASS 558 / 405
.~.~.~.~ Two carbons bonded directly to the carbon of the -C(=X)- group (e.g., ketones, etc.)

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}
404  DF  .~.~.~ Having -C(=X)-, wherein X is chalcogen, attached indirectly to the cyano group by nonionic bonding {2}
405.~.~.~.~ Two carbons bonded directly to the carbon of the -C(=X)- group (e.g., ketones, etc.)

DEFINITION

Classification: 558/405

(under subclass 404) Compounds wherein the carbon of the -C(=X)- group is bonded directly to two carbons.

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