US PATENT SUBCLASS 514 / 242
.~.~.~ Asymmetrical (e.g., 1,2,4-triazine, etc.)

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}
183  DF  .~ Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O,S,Se or Te) or nitrogen as the only ring hetero atoms DOAI {16}
241  DF  .~.~ Hetero ring is six-membered consisting of three nitrogens and three carbon atoms {4}
242.~.~.~ Asymmetrical (e.g., 1,2,4-triazine, etc.) {1}
243  DF  .~.~.~.~> Polycyclo ring system having the hetero ring as one of the cyclos

DEFINITION

Classification: 514/242

Asymmetrical (e.g., 1,2,4-triazine, etc.):

(under subclass 241) Subject matter wherein the heterocyclic ring is asymmetrical e.g., (1,2,4- triazine) [figure] [caption], etc.