US PATENT SUBCLASS 568 / 809
.~.~.~.~.~ Plural benzene rings bonded directly to the same carbon

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

Internet Version by PATENTEC © 1999      Terms of Use


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
700  DF  .~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {10}
715  DF  .~.~.~ Benzene ring containing {8}
807  DF  .~.~.~.~ Additional ring containing {2}
809.~.~.~.~.~ Plural benzene rings bonded directly to the same carbon

DEFINITION

Classification: 568/809

Plural benzene rings bonded directly to the same carbon:

(under subclass 807) Compounds wherein plural benzene rings are bonded directly to the same carbon.

(1) Note. Some examples of compounds provided for by this subclass are: [figure] [figure]