US PATENT SUBCLASS 570 / 249
.~.~.~.~.~ Nonmetallic catalyst or reaction directing agent utilized

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}
246  DF  .~.~ Preparing by addition of elemental halogen, interhalogen compound, or hydrogen halide to carbon to carbon unsaturation {2}
247  DF  .~.~.~ Catalyst or reaction directing agent utilized {1}
248  DF  .~.~.~.~ Hydrogen halide reactant {2}
249.~.~.~.~.~ Nonmetallic catalyst or reaction directing agent utilized

DEFINITION

Classification: 570/249

Nonmetallic catalyst or reaction directing agent utilized:

(under subclass 248) Process wherein the catalyst or reaction directing agent does not contain any atoms of a metal.