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Serving leading biopharmaceutical companies globally:

US Department of Justice
Queensland Health
Harvard Business School

Generated: October 21, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,270,317

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Summary for Patent: 5,270,317

Title: N-substituted heterocyclic derivatives, their preparation and the pharmaceutical compositions in which they are present
Abstract:The invention relates to N-substituted heterocyclic derivatives and its salts. These derivatives have the formula ##STR1## in which the substituents are as defined in the specification. Application: Angiotensin II antagonists
Inventor(s): Bernhart; Claude (Saint Gely du Fesc, FR), Breliere; Jean-Claude (Montpellier, FR), Clement; Jacques (Saussan, FR), Nisato; Dino (Saint Georges d'Orques, FR), Perreault; Pierre (Montpellier, FR), Muneaux; Claude (Les Matelles, FR), Muneaux; Yvette (Les Matelles, FR)
Assignee: Elf Sanofi (Paris, FR)
Application Number:07/794,497
Patent Claim Types:
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Compound; Composition;

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Foreign Priority and PCT Information for Patent: 5,270,317

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
France90 03536Mar 20, 1990
France90 10144Sep 01, 1990
France91 11161Sep 10, 1991

International Patent Family for Patent: 5,270,317

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
JapanH04506222► Subscribe
Czechoslovakia9100745► Subscribe
Czech Republic287064► Subscribe
Czech Republic287225► Subscribe
Czech Republic9202759► Subscribe
Germany19975029► Subscribe
Germany69129606► Subscribe
Denmark0454511► Subscribe
European Patent Office0454511► SubscribeC980039Netherlands► Subscribe
European Patent Office0454511► SubscribeC990006Netherlands► 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:

Fish and Richardson
Farmers Insurance
Cantor Fitzgerald
US Department of Justice

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