US PATENT SUBCLASS 131 / 331
SMOKE SEPARATOR OR TREATER

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


131 /   HD   TOBACCO

331SMOKE SEPARATOR OR TREATER {9}
332  DF  .~> Having a polymer
333  DF  .~> By electric, magnetic, or radioactive action
334  DF  .~> By chemical reaction, e.g., ion-exchange, chelating, catalytic, etc.
335  DF  .~> By adding constituent to smoke stream {2}
338  DF  .~> Having means to vary smoke flow rate
339  DF  .~> Interior surface causes particular flow characteristic {1}
341  DF  .~> Plural diverse elements {3}
345  DF  .~> Including a cellulose ester or ether
346  DF  .~> With indicator or inspection means

DEFINITION

Classification: 131/331

SMOKE SEPARATOR OR TREATER:

(under the class definition) Product or process comprising (a) means for removing or separating a constituent material from tobacco smoke, or (b) means for adding a constituent or otherwise treating tobacco smoke.

(1) Note. Included in this subclass is stock material which is solely disclosed as being filter material for a smoking product or device. Such material requiring no treatment other than cutting or altering to proper size.

(2) Note. Also included in this subclass is a special arrangement of tobacco in a portion of the cigar or cigarette which is disclosed as a smoke separator or filter, but which may be burned, provided this portion is distinguished from the remainder of the cigar or cigarette as a separate segment or mass.

(3) Note. The method of making a smoke separator, e.g., filter, and apparatus for practicing the method are not included under this subclass and will be found in the manufacturing class appropriate to the method, apparatus, or material involved.