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Generated: November 21, 2017

DrugPatentWatch Database Preview

Details for Patent: 3,957,965

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Summary for Patent: 3,957,965

Title: Sodium chromoglycate inhalation medicament
Abstract:Dosage units comprise a capsule containing a mixture of a solid, finely divided medicament having an effective particle size in the range 0.01 to 10 microns, and a solid, pharmaceutically acceptable, water-soluble carrier having an effective particle size in the range 30 to 80 microns. The compositions are suitable for use in inhalation therapy. The compositions are administered by dispersing the composition into an air stream by subjecting a dosage unit capsule to simultaneous rotation and vibration.
Inventor(s): Hartley; Philip Saxton (Kegworth, EN), Gunning; Stephen Raymond (East Leake, near Loughborough, EN)
Assignee: Fisons Limited (London, EN)
Application Number:05/401,251
Patent Claim Types:
see list of patent claims
Composition; Dosage form; Use;

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Foreign Priority and PCT Information for Patent: 3,957,965

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
36270/67Aug 8, 1967

International Patent Family for Patent: 3,957,965

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Belgium718846► Subscribe
Canada946280► Subscribe
Germany1792207► Subscribe
Germany1792799► Subscribe
Denmark123276► Subscribe
Finland48973► Subscribe
France1605538► Subscribe
France8142► Subscribe
United Kingdom1242211► Subscribe
Ireland32343► 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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