US PATENT SUBCLASS 552 / 111
.~.~ Nitrogen, except as cyano, attached indirectly to a ring by acyclic nonionic bonding (e.g., benzyl rosanilines, etc.)

Current as of: June, 1999
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552 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, subclass 1) {11}
101  DF  .~ Acyclic carbon bonded directly to three benzene rings or to two benzene rings and a cyclohexadienyl ring, which acyclic carbon may not be bonded to a fourth carbon (e.g., triphenylmethane dyestuffs, etc.) {12}
111.~.~ Nitrogen, except as cyano, attached indirectly to a ring by acyclic nonionic bonding (e.g., benzyl rosanilines, etc.)

DEFINITION

Classification: 552/111

(under subclass 101) Compounds wherein a ring is attached to nitrogen, except as cyano, by acyclic nonionic bonding.

(1) Note. The compound may contain a cynao group, provided that an additional nitrogen is present which will satisfy the requirement of this subclass.

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