US PATENT SUBCLASS 562 / 483
.~.~.~.~ Preparation by hydrolysis of amide, anhydride, or ester

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

Internet Version by PATENTEC © 1999      Terms of Use


562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
405  DF  .~.~ Aromatic {13}
480  DF  .~.~.~ Polycarboxylic acids or salts thereof {7}
483.~.~.~.~ Preparation by hydrolysis of amide, anhydride, or ester

DEFINITION

Classification: 562/483

Preparation by hydrolysis of amide, anhydride, or ester:

(under subclass 480) Processes wherein the acid is produced by hydrolysis of an amide, an anhydride, or an ester.

(1) Note. The production of a polycarboxylic acid by hydrolysis of its corresponding salt is placed in the appropriate product subclass.