US PATENT SUBCLASS 208 / 38
.~.~.~ With filtering

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

24  DF  PARAFFIN WAX; TREATMENT OR RECOVERY {4}
28  DF  .~ Separation of paraffin from oil (e.g., dewaxing) {4}
37  DF  .~.~ Chilling {1}
38.~.~.~ With filtering

DEFINITION

Classification: 208/38

(under subclass 37) Processes including the separation of wax by use of a filtering medium.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation, appropriate

subclasses for liquid filtering, per se.