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Serving leading biopharmaceutical companies globally:

US Army
Federal Trade Commission
Argus Health
Farmers Insurance

Generated: October 20, 2017

DrugPatentWatch Database Preview

Details for Patent: 6,180,639

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Summary for Patent: 6,180,639

Title: 1,3-oxathiolane nucleoside analogues
Abstract:(-)-4-amino-1-(2-hydroxymethyl-1,3-oxathiolan-5-yl)-(1H)-pyrimidin-2-one, its pharmaceutically acceptable derivatives, pharmaceutical formulation thereof, methods for its preparation and its uses as an antiviral agent are described.
Inventor(s): Coates; Jonathan Allan (Greenford, GB), Mutton; Ian Martin (Greenford, GB), Penn; Charles Richard (Greenford, GB), Williamson; Christopher (Greenford, GB), Storer; Richard (Greenford, GB)
Assignee: BioChem Pharma Inc. (Laval, CA)
Application Number:07/835,964
Patent Claim Types:
see list of patent claims
Use; Composition; Compound;

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Foreign Priority and PCT Information for Patent: 6,180,639

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9009861May 02, 1990
PCT Information
PCT FiledMay 02, 1991PCT Application Number:PCT/GB91/00706
PCT Publication Date:November 14, 1991PCT Publication Number: WO91/17159

International Patent Family for Patent: 6,180,639

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Israel98025► Subscribe
Ireland911482► Subscribe
Hungary210803► Subscribe
HungaryT64335► Subscribe
China1326743► Subscribe
China1154500► Subscribe
Czechoslovakia9101251► Subscribe
Czech Republic288499► Subscribe
Egypt19958► Subscribe
European Patent Office0625150► 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:

Daiichi Sankyo
Cantor Fitzgerald
Fish and Richardson

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