US PATENT SUBCLASS 528 / 262
.~.~.~.~ Nonaldehyde reactant, non->N-C(=X)-N< reactant contains a nitrogen atom

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
230  DF  .~ FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT {12}
259  DF  .~.~ With >N-C(=X)-N< -containing reactant wherein X is a chalcogen atom {3}
261  DF  .~.~.~ At least one reactant is a nonaldehyde or nonaldehyde derivative, non- >N C(=X)-N< -containing reactant {1}
262.~.~.~.~ Nonaldehyde reactant, non->N-C(=X)-N< reactant contains a nitrogen atom {1}
263  DF  .~.~.~.~.~> Non- >N-C(=X)-N< nitrogen reactant is an organic compound containing two or more amino groups

DEFINITION

Classification: 528/262

(under subclass 261) Subject matter wherein the nonaldehyde or derivative or non -containing reactant NX is O, S, Se, or Te) is a nitrogen-containing material.