US PATENT SUBCLASS 562 / 842
.~.~ Boron or phosphorus attached directly or indirectly to the carbonyl group by nonionic bonding

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}
842.~.~ Boron or phosphorus attached directly or indirectly to the carbonyl group by nonionic bonding

DEFINITION

Classification: 562/842

(under subclass 840) Compounds wherein boron or phosphorus is attached directly or indirectly to the carbonyl group by nonionic bonding.