US PATENT SUBCLASS 528 / 369
.~.~ N-C(=O)-OH containing reactant or ester, salt, anhydride, or acyl halide thereof

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}
367  DF  .~ FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)- {2}
369.~.~ N-C(=O)-OH containing reactant or ester, salt, anhydride, or acyl halide thereof

DEFINITION

Classification: 528/369

(under subclass 367) Subject matter wherein a reactant is a containing material or a derivative thereof.

(1) Note. Derivative is limited to esters, acyl halides, anhydrides, or salts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

271, for a discussion of such derivatives.