Canisters containing aerosol formulations containing P134a and fluticasone propionate
Patent 5674472 Issued on October 7, 1997. Estimated Expiration Date: 
May 19, 2015. 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.
May 19, 2015. 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 2868691 2885427 3014844 3219533 3320125 3809294 3897779 Steroidal aerosol compositions and process for the preparation thereof Aerosol propellant compositions Process for the preparation of a mixture of an anti-inflammatory steroid and a fluoro-chloro-hydrocarbon to be used as a propellant InventorsAssigneeApplicationNo. 444919 filed on 05/19/1995US Classes:424/45, Organic pressurized fluid222/635, Pressurized aerosol container424/46Powder or dust containingExaminersPrimary: Bawa, RajAttorney, Agent or FirmForeign Patent References
International ClassA61K 009/12Foreign Application Priority Data1991-12-12 GBAbstractThe present invention relates to canisters suitable for delivering a pharmaceutical aerosol formulation which comprises a container capable of withstanding the vapor pressure of the propellant used, which container is closed with a metering valve and contains a pharmaceutical aerosol formulation consisting essentially of a particulate medicament which is fluticasone propionate or a physiologically acceptable solvate thereof and 1,1,1,2-tetrafluoroethane as propellant, which formulation contains less than 0.0001% w/w surfactant based on the weight of the medicament, the particulate medicament being present in an amount from 0.005% to 5% w/w relative to the total weight of the formulation and having a particle size of less than 100 microns. A further particulate medicament may also be present in the pharmaceutical aerosol formulation.Other References
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