US PATENT SUBCLASS 205 / 700
.~.~ Bleaching

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

687  DF  ELECTROLYTIC MATERIAL TREATMENT (PRODUCT, PROCESS, AND ELECTROLYTE COMPOSITION) {8}
688  DF  .~ Organic {9}
700.~.~ Bleaching

DEFINITION

Classification: 205/700

Bleaching:

(under subclass 688) Subject matter in which the organic material is treated to remove color or colored impurities, usually to make the organic material lighter or whiter in appearance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

690, for electrolytic bleaching of organic fibrous material.

702, for electrolytic removal of a metal or metal compound from nonfibrous organic material which does not involve bleaching.

SEE OR SEARCH CLASS

8, Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers,

101+, for bleaching in general.