US PATENT SUBCLASS 527 / 312
.~.~ With nitrogen-containing reactant

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {6}
300  DF  .~ FROM CARBOHYDRATE OR DERIVATIVE AS A REACTANT {8}
312.~.~ With nitrogen-containing reactant

DEFINITION

Classification: 527/312

With nitrogen-containing reactant:

(under subclass 300) Subject matter wherein a nitrogen-containing reactant is present in addition to the carbohydrate or derivative.

(1) Note. Included herein are, for example, graft copolymers of starch and acrylonitrile, etc.