US PATENT SUBCLASS 534 / 797
.~.~.~ Two azo groups attached indirectly to each other by nonionic bonding

Current as of: June, 1999
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534 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
573  DF  .~ Azo {51}
751  DF  .~.~ Hetero ring containing {5}
797.~.~.~ Two azo groups attached indirectly to each other by nonionic bonding

DEFINITION

Classification: 534/797

(under subclass 751) Compounds in which two azo groups are attached indirectly to each other by nonionic bonding.

(1) Note. An example of a compound provided for herein is: [figure]