US PATENT SUBCLASS 514 / 276
.~.~.~.~ Thiamines (e.g., vitamin B1, 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}
247  DF  .~.~ Hetero ring is six-membered consisting of two nitrogens and four carbon atoms (e.g., pyridazines, etc.) {4}
256  DF  .~.~.~ 1,3-diazines (e.g., pyrimidines, etc.) {4}
276.~.~.~.~ Thiamines (e.g., vitamin B1, etc.)

DEFINITION

Classification: 514/276

Thiamines (e.g., vitamin B1. etc.):

(under subclass 256) Subject matter wherein the 1,3 diazine compound contains the structure, as shown below, e.g., vitamin B1, etc. [figure]