US PATENT SUBCLASS 507 / 204
.~.~ Organic component is cellular or fibrous material derived from plant or animal source (e.g., wood, nutshell, paper, leather, cotton, etc.)

Current as of: June, 1999
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507 /   HD   EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY

200  DF  WELL TREATING {4}
203  DF  .~ Contains organic component {17}
204.~.~ Organic component is cellular or fibrous material derived from plant or animal source (e.g., wood, nutshell, paper, leather, cotton, etc.)

DEFINITION

Classification: 507/204

Organic component is cellular or fibrous material derived from plant or animal source (e.g., wood, nutshell, paper, leather, cotton, etc.):

(under subclass 203) Compositions which contain a cellular or fibrous material derived from a plant or animal source such as wood, nutshell, seed, cotton, paper, leather, hair, etc.

(1) Note. Cellular material includes naturally occurring material which still retains a certain amount of the original tissue structure of the plant or animal.

(2) Note. Grinding, pulverizing, and comminuting does not result in the loss of original tissue structure of such material, whereas extracting generally results in the loss of original tissue structure in at least one of the products (e.g., the product being extracted). In an extraction, however, some original tissue structure may not be destroyed (i.e., the material from which a product is being extracted may retain structure).

(3) Note. Fossilized materials are not included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

201, for well treating compositions containing enzymes or living micro-organisms.

206, for fossilized humates.

214+, for cellulose or derivatives thereof, which, in the absence of information to the contrary, are presumed devoid of cell structure. 244, for proteins containing no phosphorous, which, in the absence of information to the contrary, are presumed devoid of cell structure.