US PATENT SUBCLASS 514 / 580
.~.~ Thioureas (i.e., N-C(=S)-N

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
579  DF  .~ Nitrogen containing other than solely as a nitrogen in an inorganic ion of an addition salt, a nitro or a nitroso DOAI {22}
580.~.~ Thioureas (i.e., N-C(=S)-N {3}
581  DF  .~.~.~> Thiocarbazides or thiosemicarbazides (i.e., N-N-C(=S)-N containing) {1}
584  DF  .~.~.~> C=O, sulfur or cyano attached directly to thiourea nitrogen by nonionic bonding
585  DF  .~.~.~> Benzene ring containing {2}

DEFINITION

Classification: 514/580

Thioureas (i.e., N-C(=S)-N:

(under subclass 579) Subject matter containing the grouping NN.

(1) Note. N=N is not provided for in this subclass; see appropriate subclass and in particular subclass 631.