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Serving leading biopharmaceutical companies globally:

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Generated: December 11, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,758,598

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Summary for Patent: 4,758,598

Title: Solid shaped articles
Abstract:Solid shaped articles, particularly pharmaceutical dosage forms, are prepared by freezing in a mould a composition comprising a predetermined amount of chemical (e.g. pharmaceutical) and a solution of carrier material and then subliming solvent from the frozen composition. The side wall or walls of the mould make an angle with the vertical of at least 5.degree. at the surface of the composition. This enables shaped articles of constant thickness to be produced with minimum sublimation times.
Inventor(s): Gregory; George K. E. (Marlow, GB2)
Assignee: John Wyeth & Brother Ltd. (Maidenhead, GB2)
Application Number:06/850,430
Patent Claim Types:
see list of patent claims
Composition; Formulation;

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Foreign Priority and PCT Information for Patent: 4,758,598

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8136360Dec 2, 1981

International Patent Family for Patent: 4,758,598

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina229543► Subscribe
Austria27058► Subscribe
Australia554816► Subscribe
Australia9061882► Subscribe
Brazil8206982► Subscribe
Canada1200960► Subscribe
Czechoslovakia238637► Subscribe
Cyprus1326► Subscribe
German Democratic Republic206534► Subscribe
Germany3276260► 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:

US Army
Farmers Insurance
Argus Health
Cantor Fitzgerald

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