US PATENT SUBCLASS 131 / 202
.~.~.~.~ Filter and/or absorber

Current as of: June, 1999
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131 /   HD   TOBACCO

329  DF  TOBACCO USERS' APPLIANCE {8}
330  DF  .~ Device used for smoking {21}
200  DF  .~.~ Smoke treating {1}
201  DF  .~.~.~ Material separator and trap {7}
202.~.~.~.~ Filter and/or absorber {3}
203  DF  .~.~.~.~.~> Absorber only (no filtering) {1}
205  DF  .~.~.~.~.~> Tobacco supports {1}
207  DF  .~.~.~.~.~> Absorbent or particulate

DEFINITION

Classification: 131/202

(under subclass 201) Smoking devices provided with a filter or an absorber, or both.

(2) Note. For a smoke treater or separator device, per se, disclosed for use with a smoking device or product, see this class, subclasses 261+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10, for cigars and cigarettes having filters or absorbers therein.

261, for smoke treater or separator device, per se, disclosed for use with a smoking device or product.