US PATENT SUBCLASS 424 / 54
.~ Ammonia, amine, or derivative thereof (e.g., urea, etc.)

Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

49  DF  DENTIFRICES (includes mouth wash) {9}
54.~ Ammonia, amine, or derivative thereof (e.g., urea, etc.)

DEFINITION

Classification: 424/54

(under subclass 49) Compositions which contain as an ingredient a nitrogen containing compound in the form of ammonia or an amine or derivatives thereof; e.g., urea, diammonium phosphate, etc.

(1) Note. This subclass includes a heterocyclic nitrogen containing compound.