US PATENT SUBCLASS 210 / 902
MATERIALS REMOVED

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

902MATERIALS REMOVED {7}
903  DF  .~> Nitrogenous {2}
906  DF  .~> Phosphorus containing {1}
908  DF  .~> Organic {2}
911  DF  .~> Cumulative poison {1}
915  DF  .~> Fluorine containing
916  DF  .~> Odor (including control or abatement)
917  DF  .~> Color

DEFINITION

Classification: 210/902

MATERIALS REMOVED:

Collection of disclosures directed to the removal of a particular constituent from a liquid; these disclosures are primarily concerned with removal of the material from the liquid to perfect the liquid for subsequent use or disposal; however, the same technique could be used where the specific material removed is the desired product.

SEE OR SEARCH CLASS

23, Chemistry: Physical Processes,

230+, for a chemical test for a specific material; and subclasses 293+ for a physical method of recovering a nonmetallic element or an inorganic compound from a mixture.

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures, especially

.5+, and 97+ for method of recovering metal from a liquid.

260, Chemistry of Carbon Compounds, appropriate subclasses for the recovery of an organic compound and not the physical process subclasses (704+) in that class.