US PATENT SUBCLASS 8 / 421
.~.~.~ Aminophenol dye

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

404  DF  DYEING INVOLVING ANIMAL-DERIVED NATURAL FIBER MATERIAL (OTHER THAN SOLELY WOOL OR SILK), E.G., LEATHER, FUR, HAIR, FEATHERS, ETC., COMPOSITION, PROCESS, OR PRODUCT {2}
405  DF  .~ Hair dyeing {7}
406  DF  .~.~ Oxidation dye {7}
421.~.~.~ Aminophenol dye

DEFINITION

Classification: 8/421

Aminophenol dye:

(under subclass 406) Subject matter wherein an aminophenol dye is used, e.g., indophenol, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

410, for the in situ synthesis of indophenol.