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Serving leading biopharmaceutical companies globally:

Mallinckrodt
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McKesson
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Queensland Health
Healthtrust
Citi
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Boehringer Ingelheim

Generated: October 19, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,880,283

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Summary for Patent: 5,880,283

Title: 8-alkoxyquinolonecarboxylic acid hydrate with excellent stability and process for producing the same
Abstract:The invention provides 1-cyclopropyl-6-fluoro-1,4- dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3- quinolinecarboxylic acid sesquihydrate with excellent stability represented by a following formula (1), ##STR1## and process for producing the same.
Inventor(s): Matsumoto; Toyomi (Kamiina-gun, JP), Hara; Masamoto (Okaya, JP), Miyashita; Kunio (Okaya, JP), Kato; Yukihiro (Okaya, JP)
Assignee: Kyorin Pharmaceutical Co., Ltd. (Tokyo, JP)
Application Number:08/860,325
Patent Claim Types:
see list of patent claims
Compound; Process;

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Foreign Priority and PCT Information for Patent: 5,880,283

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan6-335569Dec 21, 1994
PCT Information
PCT FiledDecember 05, 1995PCT Application Number:PCT/JP95/02477
PCT Publication Date:June 27, 1996PCT Publication Number: WO96/19472

International Patent Family for Patent: 5,880,283

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia3994695► Subscribe
Canada2208704► Subscribe
China1171108► Subscribe
China1137890► Subscribe
Germany69526453► Subscribe
Denmark0805156► Subscribe
European Patent Office0805156► Subscribe
Australia694946► Subscribe
Austria216381► Subscribe
Spain2173982► 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:

Teva
Harvard Business School
Fish and Richardson
Cantor Fitzgerald
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Federal Trade Commission
AstraZeneca
QuintilesIMS
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