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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
Johnson and Johnson
Boehringer Ingelheim

Generated: November 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,674,472

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Summary for Patent: 5,674,472

Title: Canisters containing aerosol formulations containing P134a and fluticasone propionate
Abstract:The 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.
Inventor(s): Akehurst; Rachel Ann (Ware, GB3), Taylor; Anthony James (Ware, GB3), Wyatt; David Andrew (Ware, GB3)
Assignee: Glaxo Group Limited (London, GB)
Application Number:08/444,919
Patent Claim Types:
see list of patent claims
Formulation; Delivery; Device;

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Foreign Priority and PCT Information for Patent: 5,674,472

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9126378Dec 12, 1991
United Kingdom9126405Dec 12, 1991
United Kingdom9202522Feb 06, 1992

International Patent Family for Patent: 5,674,472

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Israel104068► Subscribe
Greece3036476► Subscribe
Hong Kong79097► Subscribe
Greece3018168► Subscribe
Georgia, Republic ofP20002253► Subscribe
United Kingdom9202522► Subscribe
United Kingdom9126444► Subscribe
Hong Kong1004711► Subscribe
Hungary0800468► Subscribe
Hungary227681► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
US Department of Justice
Fish and Richardson

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