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Generated: September 22, 2017

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Title: CRC-free medicinal aerosol formulations of 1,1,1,2-tetrafluoroethane (134A) with polar adjuvant
Abstract:A medicinal aerosol formulation including 0.01-5% medicament, at least 50% by weight 1,1,1,2-tetrafluoroethane (134a), less than 5% surface active agent, and at least one compound having higher polarity than 1,1,1,2-tetrafluoroethane, and which is free of chlorofluorocarbons and propellants CHClF.sub.2, CH.sub.2 F.sub.2 and CF.sub.3 CH.sub.3.
Inventor(s): Purewal; Tarlochan S. (Leamington Spa, GB), Greenleaf; David J. (Loughborough, GB)
Assignee: Riker Laboratories Inc. (St. Paul, MN)
Application Number:09/067,346
Patent Claim Types:
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Formulation; Compound;

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Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom88284773Dec 06, 1988

International Patent Family for Patent: ► Subscribe

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany68904300► Subscribe
Germany68924540► Subscribe
Denmark595789► Subscribe
European Patent Office0372777► Subscribe
European Patent Office0499344► Subscribe
European Patent Office0653204► Subscribe
European Patent Office0995434► Subscribe
Spain2045470► Subscribe
Spain2077971► Subscribe
Canada2303601► 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 500+ biopharmaceutical companies globally:

Federal Trade Commission
Argus Health
Harvard Business School
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Citi
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Dow

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