US PATENT SUBCLASS 504 / 169
.~.~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is 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}
162  DF  .~ Abscission agent, defoliant, or desiccant {6}
166  DF  .~.~ Hetero ring containing active ingredient {2}
169.~.~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen {1}
170  DF  .~.~.~.~> Ring chalcogen in the hetero ring

DEFINITION

Classification: 504/169

Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen:

(under subclass 166) Compositions in which the hetero ring is five-membered and has two or more hetero atoms as ring members, at least one of which is nitrogen.

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