US PATENT SUBCLASS 510 / 533
.~.~ Polycarboxylic acid component, or salt thereof (e.g., nitrilotriacetic acid, polyacrylic acid, etc.)

Current as of: June, 1999
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510 /   HD   CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS

513  DF  AUXILIARY COMPOSITIONS FOR CLEANING, OR PROCESSES OF PREPARING (E.G., LAUNDERING AIDS, SUCH AS WRINKLE-REDUCING COMPOSITIONS, ETC.) {7}
531  DF  .~ Detergent builder composition {3}
533.~.~ Polycarboxylic acid component, or salt thereof (e.g., nitrilotriacetic acid, polyacrylic acid, etc.)

DEFINITION

Classification: 510/533

Polycarboxylic acid component, or salt thereof (e.g., nitrilotriacetic acid, polyacrylic acid, etc.):

(under subclass 531) Compositions which include a component which contains plural carboxyl substituents attached to one another by direct or indirect nonionic bonding, or is a salt of such substituents.