US PATENT SUBCLASS 131 / 277
.~.~ Heterocyclic

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


131 /   HD   TOBACCO

274  DF  PRODUCT OR DEVICE HAVING IDENTIFIABLE CONSTITUENT TO FLAVOR OR ENHANCE FLAVOR {2}
276  DF  .~ Organic compound {2}
277.~.~ Heterocyclic {1}
278  DF  .~.~.~> Containing nitrogen as hetro atom

DEFINITION

Classification: 131/277

Heterocyclic:

(under subclass 276) Product or device wherein the organic

compound is characterized by a ring composed of atoms of more than one kind.