US PATENT SUBCLASS 426 / 536
.~.~ Heterocyclic


Current as of: June, 1999
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426 /   HD   FOOD OR EDIBLE MATERIAL: PROCESSES, COMPOSITIONS, AND PRODUCTS

531  DF  PRODUCTS PER SE, OR PROCESSES OF PREPARING OR TREATING COMPOSITIONS INVOLVING CHEMICAL REACTION BY ADDITION, COMBINING DIVERSE FOOD MATERIAL, OR PERMANENT ADDITIVE {29}
534  DF  .~ Flavor per se, or containing flavor or flavor improver of identifiable organic chemical constitution {3}
536.~.~ Heterocyclic {1}
537  DF  .~.~.~> Hetero-N-atom


DEFINITION

Classification: 426/536

(under subclass 534) Subject matter the organic material contains a ring structure containing dissimilar composed of carbon atoms and one or more other atoms.

SEE OR SEARCH THIS CLASS, SUBCLASS:

535, for sulfur containing heterocyclic compound.