US PATENT SUBCLASS 8 / 684
.~.~.~.~.~.~ Heterocyclic


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

636  DF  DYE OR POTENTIAL DYE COMPOSITION, ADDITIVE, TREATMENT, PROCESS, PRODUCT, OR ANCILLARY DYE OPERATION {12}
662  DF  .~ Azo, acridone, or quinone dye {15}
680  DF  .~.~ Dye containing -(O=)S(=O)-O-, -O(O=)S(=O)-O- or phosphorus oxide group {1}
681  DF  .~.~.~ Sulfonated azo {1}
682  DF  .~.~.~.~ Monoazo {1}
683  DF  .~.~.~.~.~ Monosulfonated {1}
684.~.~.~.~.~.~ Heterocyclic


DEFINITION

Classification: 8/684

Heterocyclic:

(under subclass 683) Subject matter wherein the dye contains a heterocyclic group.