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Details for Patent: 5,045,552

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Summary for Patent: 5,045,552

Title: Pyridine derivatives having anti-ulcerative activity
Abstract:Pyridine derivatives useful for preventing or treating peptic ulcers, pharmaceutical preparations and methods of treating peptic ulcers are described.
Inventor(s): Souda; Shigeru (Ushiku, JP), Ueda; Norihiro (Niihari, JP), Miyazawa; Shuhei (Toride, JP), Tagami; Katsuya (Niihari, JP), Nomoto; Seiichiro (Ushiku, JP), Okita; Makoto (Tsuchiura, JP), Shimomura; Naoyuki (Niihari, JP), Kaneko; Toshihiko (Tsukuba, JP), Fujimoto; Masatoshi (Tsukuba, JP), Murakami; Manabu (Rockville, MD), Oketani; Kiyoshi (Tsukuba, JP), Fujisaki; Hideaki (Niihari, JP), Shibata; Hisashi (Tsuchiura, JP), Wakabayashi; Tsuneo (Mito, JP)
Assignee: Eisai Co., Ltd. (Tokyo, JP)
Application Number:07/462,328
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

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Foreign Priority and PCT Information for Patent: 5,045,552

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan61-270536Nov 13, 1986
Japan62-21989Feb 02, 1987
Japan62-77784Mar 31, 1987

International Patent Family for Patent: 5,045,552

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany3752167► subscribe
Germany3752201► subscribe
Denmark171024► 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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