US PATENT SUBCLASS 534 / 720
.~.~.~.~ Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, 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}
692  DF  .~.~ Heavy metal or aluminum containing {7}
713  DF  .~.~.~ Benzene ring containing {6}
720.~.~.~.~ Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl, etc.) {1}
721  DF  .~.~.~.~.~> Nitrogen bonded directly to the -C(=X)- group (e.g., carboxamide, etc.)

DEFINITION

Classification: 534/720

(under subclass 713) Compounds which contain a -- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

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