US PATENT SUBCLASS 504 / 223
.~.~.~ Hetero ring is six-membered including nitrogen and oxygen

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}
223.~.~.~ Hetero ring is six-membered including nitrogen and oxygen {1}
224  DF  .~.~.~.~> 1,4-oxazines (including hydrogenated) {2}

DEFINITION

Classification: 504/223

Hetero ring is six-membered including nitrogen and oxygen:

(under subclass 209) Compositions wherein the hetero ring is six-membered and has nitrogen, oxygen, and carbon as ring members.

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