The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 1978
Filed:
Dec. 27, 1976
Ronald S Schreiber, Highland Park, NJ (US);
Colgate-Palmolive Company, New York, NY (US);
Abstract
Oral compositions containing an anticalculus agent selected from the group consisting of compounds having the following structural formulas: ##STR1## wherein X, X', Y, and Y' are selected from the group consisting of H, OH, SO.sub.3 Na, and CH.sub.2 N(CH.sub.2 COOH).sub.2 and additionally wherein at least two of the substituents X, X', Y, and Y' must be hydroxyls, and at least one of the further of said substituents must be OH, SO.sub.3 Na, or CH.sub.2 N (CH.sub.2 COOH).sub.2. The preferred anthraquinoid derivatives are Alizarin red S monohydrate, Alizarin complexone dihydrate, purpurin, and purpurin sulfonate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile