US PATENT SUBCLASS 210 / 500.27
.~.~.~ Organic

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

348  DF  FILTER {25}
500.1  DF  .~ Material {6}
500.21  DF  .~.~ Semipermeable membrane {6}
500.27.~.~.~ Organic {7}
500.28  DF  .~.~.~.~> Cyclic {2}
500.35  DF  .~.~.~.~> Acrylate
500.36  DF  .~.~.~.~> Alkene other than vinyl
500.37  DF  .~.~.~.~> Amine {1}
500.4  DD  .~.~.~.~> Carbonate
500.41  DF  .~.~.~.~> Sulfone
500.42  DF  .~.~.~.~> Vinyl {1}

DEFINITION

Classification: 210/500.27

Organic:

(under subclass 500.21) Subject matter comprising an organic substance.

(1) Note. Organic is intended to include substances which have a carbon atom bonded to another carbon atom, or to a halogen atom, or to a hydrogen atom, or to a nitrogen atom by a single or a double bond.