US PATENT SUBCLASS 562 / 572
.~.~.~.~.~ Nitrilotriacetic acid per se or salt thereof

Current as of: June, 1999
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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}
512  DF  .~.~ Acyclic {14}
553  DF  .~.~.~ Nitrogen bonded to carbon of organic radical (e.g., amino acids, etc.) {10}
571  DF  .~.~.~.~ Polycarboxylic {2}
572.~.~.~.~.~ Nitrilotriacetic acid per se or salt thereof

DEFINITION

Classification: 562/572

Nitrilotriacetic acid, per se, or salt thereof:

(under subclass 571) The compound which is nitrilotriacetic acid (i.e., structure below) or its salts and processes for its preparation not provided for above.