US PATENT SUBCLASS 252 / 301.28
.~.~.~ Thiazoles or oxazoles

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

301.16  DF  ORGANIC LUMINESCENT MATERIAL CONTAINING COMPOSITIONS {6}
301.21  DF  .~ Optical brightening compositions {6}
301.27  DF  .~.~ Azole containing {2}
301.28.~.~.~ Thiazoles or oxazoles

DEFINITION

Classification: 252/301.28

(under subclass 301.27) Compositions in which the ring also contains sulfur or oxygen.

SEE OR SEARCH CLASS

548, Organic Compounds, appropriate subclasses for thiazole and oxazole compounds, per se.