Non-chlorofluorocarbon aerosol formulations
Patent 5474759 Issued on December 12, 1995. Estimated Expiration Date: 
December 9, 2013. 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.
December 9, 2013. 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 References 2885427 3261748 3644353 Manufacture of halogenated compounds Aerosol propellant compositions Process for the manufacture of 1,1,1,2-tetrafluoroethane Aerosol compositions containing finely divided solid materials Liquid phase halogen exchange process for the manufacture of 1,1,1,2-tetrafluoroethane Foaming system for rigid urethane and isocyanurate foams 5118494 InventorsAssigneeApplicationNo. 157182 filed on 12/09/1993US Classes:424/45, Organic pressurized fluid422/34, Using alkylene oxide422/37, Using halogen or halogen-containing compound424/46, Powder or dust containing514/826ASTHMAExaminersPrimary: Griffin, Ronald W.Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/72C09K 003/30 AbstractAerosol formulations substantially free of chlorofluorocarbons for oral and/or nasal administration are described. The formulations comprise 1,1,1,2,3,3,3-heptafluoropropane, a medicament, optionally an excipient and optionally a surfactant. Methods of treatment utilizing the formulations are also described.Other References
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