US PATENT SUBCLASS 558 / 416
.~.~.~.~.~ Oxygen bonded directly to the carbonyl (e.g., benzoic acid esters, 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}
411  DF  .~.~ Benzene ring bonded directly to the cyano group {6}
414  DF  .~.~.~ Carbonyl attached indirectly to the cyano group by nonionic bonding {2}
415  DF  .~.~.~.~ Benzene ring bonded directly to the carbonyl {1}
416.~.~.~.~.~ Oxygen bonded directly to the carbonyl (e.g., benzoic acid esters, etc.)

DEFINITION

Classification: 558/416

(under subclass 415) Compounds wherein the carbonyl is bonded directly to both a benzene ring and to oxygen.

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