US PATENT SUBCLASS 8 / 431
.~.~ With fluid treatment, e.g., bleaching with dyeing, etc.

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
431.~.~ With fluid treatment, e.g., bleaching with dyeing, etc. {2}
432  DF  .~.~.~> -S-S- bond disruption, e.g., use of thioglycolates, etc.
433  DF  .~.~.~> Swelling of hair

DEFINITION

Classification: 8/431

With fluid treatment, e.g., bleaching with dyeing, etc.:

(under subclass 405) Subject matter wherein dyeing is combined with a fluid treatment of hair, e.g., bleaching and dyeing, etc.

(1) Note. To be proper herein the fluid must be more than a mere solvent assist. See in particular subclass 435 for dyeing utilizing a solvent which merely aids the dye in dyeing.

(2) Note. Mere knowledge or inherency of swelling or -S-S- bond disruption without an express recitation, except for ureas and thioglycolates, is not sufficient to put in subclass 432 or 433 and is in this subclass.

SEE OR SEARCH CLASS

424, Drug, Bio-Affecting and Body Treating Compositions, appropriate subclass for a fluid treatment that affects live skin of an animal or human; and

62+, for the combination of bleaching and dyeing of hair on living animals.