US PATENT SUBCLASS 562 / 849
.~.~ Fluorine is the halogen (i.e., carboxylic fluorides)

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}
840  DF  .~ Carboxylic halides (i.e., compounds having the -C(=O)-halo group) {11}
849.~.~ Fluorine is the halogen (i.e., carboxylic fluorides) {3}
850  DF  .~.~.~> Plural -C(=O)-F groups attached indirectly to each other by nonionic bonding
851  DF  .~.~.~> Processes for forming the carbonyl group
852  DF  .~.~.~> Processes for forming the carbonyl to fluoride bond

DEFINITION

Classification: 562/849

(under subclass 840) Compounds in which the halogen is fluorine; i.e., -C(=O)-F.

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