US PATENT SUBCLASS 521 / 129
.~.~.~.~ Nitrogen compound contains a nitrogen atom bonded to three carbon atoms and wherein none of the carbon atoms are double-bonded to oxygen

Current as of: June, 1999
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521 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
99  DF  .~.~ Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water {18}
128  DF  .~.~.~ Ingredient is a nitrogen containing compound {1}
129.~.~.~.~ Nitrogen compound contains a nitrogen atom bonded to three carbon atoms and wherein none of the carbon atoms are double-bonded to oxygen

DEFINITION

Classification: 521/129

Nitrogen compound contains a nitrogen atom bonded to three carbon atoms and wherein none of the carbon atoms are double bonded to oxygen:

(under subclass 128) Subject matter wherein the nitrogen compound contains at least one nitrogen atom which is bonded to three carbon atoms and wherein none of the carbon atoms bonded to the nitrogen atom are double bonded to oxygen.