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Details for Patent: 6,524,555

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Summary for Patent: 6,524,555

Title: Metered dose inhaler for salmeterol
Abstract:A metered dose inhaler having part or all of its internal metallic surfaces coated with one or more fluorocarbon polymers, optionally in combination with one or more non-fluorocarbon polymers, for dispensing an inhalation drug formulation comprising salmeterol, or a salt thereof, and a fluorocarbon propellant, optionally in combination with one or more other pharmacologically active agents and one or more excipients.
Inventor(s): Ashurst; Ian C. (Ware, GB), Britto; Ignatius Loy (Cary, NC), Herman; Craig Steven (Raleigh, NC), Li-Bovet; Li (Chapel Hill, NC), Riebe; Michael Thomas (Raleigh, NC)
Assignee: SmithKline Beecham Corp. (Philadelphia, PA)
Application Number:09/562,946
Patent Claim Types:
see list of patent claims
Composition; Formulation; Delivery; Device;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 132nd percentile
Forward Citations: 0th percentile

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Premature patent expiration for: 6,524,555

Expiration due to failure to pay maintenance fee

Patent Number Expiration Date
6,524,555 February 25, 2015

International Patent Family for Patent: 6,524,555

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
African Regional IP Organization (ARIPO)9701113► subscribe
African Regional IP Organization (ARIPO)979► subscribe
Austria250439► 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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