US PATENT SUBCLASS 558 / 420
.~.~.~.~.~ Plural benzene rings bonded directly to cyano groups

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

Internet Version by PATENTEC © 1999      Terms of Use


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
303  DF  .~ Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {21}
411  DF  .~.~ Benzene ring bonded directly to the cyano group {6}
418  DF  .~.~.~ Nitrogen, except as nitro or nitroso, attached indirectly to the cyano group by nonionic bonding {2}
419  DF  .~.~.~.~ Plural cyano groups containing {2}
420.~.~.~.~.~ Plural benzene rings bonded directly to cyano groups

DEFINITION

Classification: 558/420

(under subclass 419) Compounds wherein cyano groups are bonded directly to more that one benzene ring.

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