US PATENT SUBCLASS 203 / 70
.~.~.~ Acyclic

Current as of: June, 1999
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203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

50  DF  ADDING MATERIAL TO DISTILLAND EXCEPT WATER OR STEAM PER SE {2}
57  DF  .~ Organic compound {8}
68  DF  .~.~ Hydrocarbon {2}
70.~.~.~ Acyclic

DEFINITION

Classification: 203/70

(under subclass 68) Processes in which the hydrocarbon is acyclic.

(1) Note. A compound consisting of carbon and hydrogen and

having an open chain structure, only, is an acyclic hydrocarbon.

SEE OR SEARCH CLASS

585, Chemistry of Hydrocarbon Compounds,

16, and 18 for a hydrocarbon which is acyclic.