Preparation of anthralin solutions or suspensions in aromatic esters and their use for diseases of the skin and nails
Patent 4504494 Issued on March 12, 1985. Estimated Expiration Date: 
January 20, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 20, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesFluid and semi-fluid compositions including benzoate esters Anti-acne composition Automatic signal compensation recording and reproducing apparatus Patent #: 4326224 InventorsAssigneeApplicationNo. 06/459647 filed on 01/20/1983US Classes:514/544, C(=O)O attached directly through the carbon to a benzene ring514/568Benzene ring nonionically bondedExaminersPrimary: Schenkman, LeonardAttorney, Agent or FirmInternational ClassesA61K 31/60 (20060101)A61K 47/14 (20060101) A61K 31/215 (20060101) A61K 31/235 (20060101) A61K 31/21 (20060101) Foreign Application Priority Data1982-01-28 FRAbstractAn oxidation-stable composition is useful for the treatment of diseases of the skin and nails, which comprises a solution of dispersion of anthralin in an aromatic ester of the formula: ##STR1## wherein R represents H, OH, CH3, or OCH3,n is 1 or 2;R1 represents a linear or branched alkyl radical having 1 to 18 carbon atoms; a cycloalkyl radical having 4 to 6 carbon atoms which is optionally substituted by an alkyl radical having 1 to 3 carbon atoms; an arylalkyl or arylalkenyl radical in which the alkyl or alkenyl radical has 1 to 3 carbon atoms; or a phenyl radical optionally substituted by an alkyl radical having 1 to 3 carbon atoms or by an alkoxy radical having 1 or 2 carbon atoms;X represents the divalent radical --CH2 --, --CH2 --CH2 --, or --CH=C--; and t is 0 or 1.Other References
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