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Details for Patent: 6,749,864

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Summary for Patent: 6,749,864

Title: Stabilized pharmaceutical composition
Abstract:The pharmaceutical composition of the invention, which comprises a benzimidazole compound of the formula ##STR1## wherein R.sup.1 is hydrogen, alkyl, halogen, cyano, carboxy, carboalkoxy, carboalkoxyalkyl, carbamoyl, carbamoylalkyl, hydroxy, alkoxy, hydroxyalkyl, trifluoromethyl, acyl, carbamoyloxy, nitro, acyloxy, aryl, aryloxy, alkylthio or alkylsulfinyl, R.sup.2 is hydrogen, alkyl, acyl, carboalkoxy, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, alkylcarbonylmethyl, alkoxycarbonylmethyl or alkylsulfonyl, R.sup.3 and R.sup.5 are the same or different and each is hydrogen, alkyl, alkoxy or alkoxyalkoxy, R.sup.4 is hydrogen, alkyl, alkoxy which may optionally be fluorinated, or alkoxyalkoxy, and m is an integer of 0 through 4, and a basic inorganic salt stabilizing agent, is physically stable. Magnesium and calcium basic inorganic salt stabilizing agents are particularly useful.
Inventor(s): Makino; Tadashi (Osaka, JP), Tabata; Tetsuro (Osaka, JP), Hirai; Shin-Ichiro (Kyoto, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:10/335,421
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 39th percentile
Forward Citations: 0th percentile

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Premature patent expiration for: 6,749,864

Expiration due to failure to pay maintenance fee

Patent Number Expiration Date
6,749,864 June 15, 2008

Foreign Priority and PCT Information for Patent: 6,749,864

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan61-29567Feb 13, 1986
Japan61-38059Feb 21, 1986

International Patent Family for Patent: 6,749,864

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Bulgaria61202► subscribe
Canada1327010► subscribe
Canada1338377► 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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