US PATENT SUBCLASS 514 / 598
.~.~.~.~.~ Benzene ring is part of a substituent which contains oxygen


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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}
588  DF  .~.~ Ureas (i.e., N-C(=O)-N) {6}
595  DF  .~.~.~ Benzene ring containing {1}
596  DF  .~.~.~.~ Benzene ring bonded directly to urea nitrogen {2}
598.~.~.~.~.~ Benzene ring is part of a substituent which contains oxygen


DEFINITION

Classification: 514/598

Benzene ring is part of a substituent which contains oxygen:

(under subclass 596) Subject matter wherein the benzene ring is part of a substituent which contains oxygen.