US PATENT SUBCLASS 534 / 845
.~.~.~.~.~.~ Oxygen bonded directly to the sulfonyl group (e.g., sulfonic acid, etc.)

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

Internet Version by PATENTEC © 1999      Terms of Use


534 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
573  DF  .~ Azo {51}
838  DF  .~.~ Exactly one azo group containing or azo attached indirectly to an additional azo group by ionic bonding {3}
839  DF  .~.~.~ Plural benzene rings bonded directly to the azo group {5}
843  DF  .~.~.~.~ Each of the benzene rings is monocyclic {3}
844  DF  .~.~.~.~.~ Sulfonyl containing {3}
845.~.~.~.~.~.~ Oxygen bonded directly to the sulfonyl group (e.g., sulfonic acid, etc.) {1}
846  DF  .~.~.~.~.~.~.~> Plural oxygens bonded directly to the sulfonyl group (e.g., sulfuric acid, etc.)

DEFINITION

Classification: 534/845

(under subclass 844) Compounds which contain a --O- group.

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