US PATENT SUBCLASS 504 / 346
.~.~.~ Containing -N=N-, -NH-NH-, or -NH-X-, wherein X is chalcogen and substitution may be made for hydrogen only

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}
326  DF  .~.~ Containing nitrogen, other than as nitro or nitroso, attached directly or indirectly to carbon by nonionic bonding {7}
346.~.~.~ Containing -N=N-, -NH-NH-, or -NH-X-, wherein X is chalcogen and substitution may be made for hydrogen only

DEFINITION

Classification: 504/346

Containing -N=N-, -NH-NH-, or -NH-X-, wherein X is chalcogen

and substitution may be made for hydrogen only:

(under subclass 326) Compositions which contain the -N=N-, -NH-NH-, or NH-X- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and substitution may be made for hydrogen only.