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Document Number
US Patent 7390838
Issued Date
June 24, 2008
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Abstract
The present invention is directed to crystalline forms of anhydrous 4-cyclopentyl resorcinol, the Form A and C polymorphs, formulations containing at least one of these crystalline forms and their use to lighten skin.
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Number of Claims:
5
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Owner
Pfizer Inc. (New York, NY)
Published
June 24, 2008
Application Number
10/848,656
Filed
May 19, 2004
US Classification
514/729   514/730 514/731
Int'l Classification
A61K   31/045   (20060101)   A61K   31/05   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority from U.S. Provisional Patent Application No. 60/472,055 filed May 20, 2003.
USPTO Field of Search
514/719   514/729   514/730   514/731  
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