US PATENT SUBCLASS 504 / 164
.~.~ Boron, silicon, heavy metal, or aluminum containing active ingredient

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}
164.~.~ Boron, silicon, heavy metal, or aluminum containing active ingredient

DEFINITION

Classification: 504/164

Boron, silicon, heavy metal, or aluminum containing active ingredient:

(under subclass 162) Compositions wherein the active abscission, defoliant, or desiccant agent is an organic compound which contains boron, silicon, aluminum, or a metal having a specific gravity greater than four.

(1) Note. Arsenic is considered a heavy metal.