US PATENT SUBCLASS 510 / 501
.~.~.~ Amido nitrogen (e.g., urea, 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

108  DF  CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.) {21}
461  DF  .~ Specific organic component (e.g., triazines, etc.) {15}
499  DF  .~.~ Nitrogen in the component (except triazines) (e.g., amine, etc.) {4}
501.~.~.~ Amido nitrogen (e.g., urea, etc.) {1}
502  DF  .~.~.~.~> Hydroxy in the component

DEFINITION

Classification: 510/501

Amido nitrogen (e.g., urea, etc.):

(under subclass 499) Compositions wherein the organic component contains an amido substituent (i.e., a carbonyl group, -C(=O)-, is bonded directly to the nitrogen).