US PATENT SUBCLASS 570 / 255
.~.~.~ All reactants in vapor phase

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
252  DF  .~.~ Elemental halogen reactant {2}
255.~.~.~ All reactants in vapor phase

DEFINITION

Classification: 570/255

All reactants in vapor phase:

(under subclass 252) Process wherein all reactants are in the vapor phase in the reaction zone.