US PATENT SUBCLASS 562 / 863
.~.~.~.~ Elemental halogen or hydrogen halide utilized

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}
856  DF  .~.~ Processes {7}
861  DF  .~.~.~ Forming the carbonyl to halide bond {2}
863.~.~.~.~ Elemental halogen or hydrogen halide utilized

DEFINITION

Classification: 562/863

(under subclass 861) Processes in which elemental halogen or hydrogen halide is utilized as a reactant.