US PATENT SUBCLASS 504 / 218
.~.~.~ Hetero ring contains at least seven members including nitrogen

Current as of: June, 1999
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504 /   HD   PLANT PROTECTING AND REGULATING COMPOSITIONS

116  DF  PLANT GROWTH REGULATING COMPOSITIONS (E.G., HERBICIDES, ETC.) {9}
189  DF  .~ Organic active compound containing {19}
209  DF  .~.~ Hetero ring containing {11}
218.~.~.~ Hetero ring contains at least seven members including nitrogen {2}
219  DF  .~.~.~.~> Additional hetero ring containing
220  DF  .~.~.~.~> Having -C(=X)-, wherein X is chalcogen, bonded directly to ring nitrogen of the hetero ring

DEFINITION

Classification: 504/218

Hetero ring contains at least seven members including nitrogen:

(under subclass 209) Compositions which contain a hetero ring having at least seven ring members of which one or more is nitrogen.

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