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Details for Patent: 5,599,557

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Summary for Patent: 5,599,557

Title: Stable hydrated cephalosporin dry powder for oral suspension formulation
Abstract:A dry hydrated cephalosporin, e.g. ceftibuten having about 7 to 14% by weight of water, powder formulation, pharmaceutical compositions in the form of an oral suspension dosage form and a method of making the dry powder formulations are disclosed.
Inventor(s): Johnson; Donald A. (Miami Lakes, FL), Wearley; Lorraine (Westfield, NJ), Galeos; Rebecca (Bloomfield, NJ), Sequeira; Joel A. (New York, NY)
Assignee: Schering Corporation (Kenilworth, NJ)
Application Number:08/325,400
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Process; Dosage form;
Patent PDF download available with subscription

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Foreign Priority and PCT Information for Patent: 5,599,557

PCT Information
PCT FiledApril 30, 1993PCT Application Number:PCT/US93/03856
PCT Publication Date:November 11, 1993PCT Publication Number: WO93/21923

International Patent Family for Patent: 5,599,557

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria150310<disabled in preview>
Australia4115293<disabled in preview>
Australia674516<disabled in preview>
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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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