US PATENT SUBCLASS 534 / 718
.~.~.~.~.~.~ Plural monocyclic benzene rings attached directly or indirectly to each other by acyclic nonionic bonding and are between the azo groups


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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}
692  DF  .~.~ Heavy metal or aluminum containing {7}
713  DF  .~.~.~ Benzene ring containing {6}
716  DF  .~.~.~.~ Two azo groups in the same azo moiety attached indirectly to each other by nonionic bonding {2}
717  DF  .~.~.~.~.~ Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) {1}
718.~.~.~.~.~.~ Plural monocyclic benzene rings attached directly or indirectly to each other by acyclic nonionic bonding and are between the azo groups


DEFINITION

Classification: 534/718

(under subclass 717) Compounds where in between the azo groups are at least two monocylcic benzene rings which are attached directly or indirectly to each other by acyclic nonionic bonding.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]