US PATENT SUBCLASS 504 / 170
.~.~.~.~ Ring chalcogen in the hetero ring

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  DF  .~.~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen {1}
170.~.~.~.~ Ring chalcogen in the hetero ring

DEFINITION

Classification: 504/170

Ring chalcogen in the hetero ring:

(under subclass 169) Compositions wherein the hetero ring also has chalcogen as a ring member.

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