US PATENT SUBCLASS 131 / 290
TOBACCO TREATMENT

Current as of: June, 1999
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131 /   HD   TOBACCO

290TOBACCO TREATMENT {8}
291  DF  .~> Puffing {5}
297  DF  .~> Extraction of component, other than moisture, by contact with diverse medium {1}
299  DF  .~> With electrical or radiant energy
300  DF  .~> With fluid or fluent material {6}
311  DF  .~> Including leaf disintegration {1}
313  DF  .~> Leaf stemming {5}
324  DF  .~> Leaf straightening, brushing, smoothing, rolling, corrugating, or flattening with or without stem crushing {2}
327  DF  .~> Leaf associating or disassociating

DEFINITION

Classification: 131/290

TOBACCO TREATMENT:

(under the class definition) Process or apparatus relating to the physical or chemical treatment of tobacco, either prior or subsequent to the manufacture thereof into a tobacco product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

31, 62+ and 79, for cigar and cigarette making combined with a tobacco treatment.

281, for cigar and cigarette making including the step of perforating.

286, for cigar and cigarette making including the step of cleaning away an unwanted tobacco product.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids, appropriate subclasses for the drying of tobacco, per se.

47, Plant Husbandry, appropriate subclasses for tobacco plant husbandry. 56, Harvesters,

27.5, for tobacco harvesting.

57, Textiles: Spinning, Twisting, and Twining,

28+, for tobacco spinning.

432, Heating,

500, for tobacco barns.

460, Crop Threshing or Separating,

123+, for the stripping of tobacco leaves from the stalk.