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Serving leading biopharmaceutical companies globally:

Farmers Insurance
Express Scripts
Harvard Business School
Boehringer Ingelheim

Generated: October 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 3,669,966

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Summary for Patent: 3,669,966

Abstract:Pyrazine derivatives wherein a pyrazine ring is introduced into benzenesulphonyl-urea compounds, typified by the compound are disclosed. These compounds have hypoglycemic properties and are useful in the treatment of diabetic conditions.
Inventor(s): Ambrogi; Vittorio (Bresso, IT), Logemann; Willy (Milan, IT)
Assignee: Carlo Erba S.p.A. (Milan, IT)
Application Number:05/022,389
Patent Claim Types:
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Compound; Process;

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Foreign Priority and PCT Information for Patent: 3,669,966

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Italy18301 A/69Jun 18, 1969
Italy14581 A/69Mar 26, 1969

International Patent Family for Patent: 3,669,966

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria305305► Subscribe
Belgium747405► Subscribe
Canada952112► Subscribe
Switzerland547809► Subscribe
Cyprus645► Subscribe
Germany2012138► Subscribe
Denmark128320► Subscribe
Spain377925► Subscribe
Finland52720► Subscribe
France2035890► 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:

Boehringer Ingelheim
Argus Health
Daiichi Sankyo
Queensland Health

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