US PATENT SUBCLASS 502 / 437
.~.~.~ Specified source (e.g., peach pit, etc.)

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

400  DF  SOLID SORBENT {6}
416  DF  .~ Free carbon containing {3}
418  DF  .~.~ Process utilizing solid or liquid source carbonizable material, or product thereof {9}
437.~.~.~ Specified source (e.g., peach pit, etc.)

DEFINITION

Classification: 502/437

Specified source (e.g., peach pit, etc.):

(under subclass 418) Composition characterized by the original material carbonized to form the free carbon and not limited to a specific process by which it is produced.