US PATENT SUBCLASS 8 / 519
.~.~ Cellulose ester or cellulose ether


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

506  DF  NONTEXTILE, DYEING PROCESS OR PRODUCT, INCLUDING INORGANIC FIBER {12}
518  DF  .~ Cellulose substrate other than paper {1}
519.~.~ Cellulose ester or cellulose ether


DEFINITION

Classification: 8/519

Cellulose ester or cellulose ether:

(under subclass 518) Subject matter for dyeing a cellulose ether or ester substrate.