US PATENT SUBCLASS 562 / 459
.~.~.~ Aldehyde or ketone

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
405  DF  .~.~ Aromatic {13}
459.~.~.~ Aldehyde or ketone {3}
460  DF  .~.~.~.~> Two rings bonded directly to the same carbonyl
461  DF  .~.~.~.~> Polycyclo ring system {1}
463  DF  .~.~.~.~> Oxy {1}

DEFINITION

Classification: 562/459

Aldehyde or ketone:

(under subclass 405) Compounds wherein the acid contains the group -C( O) X bonded to carbon, where X is C or H, i.e., aldehyde or ketone group containing acids.

(1) Note. This subclass contains, for example: [figure] [figure]