US PATENT SUBCLASS 585 / 603
.~.~ From nonhydrocarbon feed

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
601  DF  .~ Diolefin product {4}
603.~.~ From nonhydrocarbon feed {3}
604  DF  .~.~.~> Heterocyclic {1}
606  DF  .~.~.~> O-containing {3}
612  DF  .~.~.~> Halogen-containing feed using extraneous nonhydrocarbon agent

DEFINITION

Classification: 585/603

From nonhydrocarbon feed:

(under subclass 601) Subject matter wherein a feedstock compound, which furnished carbon atoms appearing in the final product, contains atoms other than carbon and hydrogen.