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Generated: October 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,470,972

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Summary for Patent: 4,470,972

Title: 7-Carboxyalkylaminoacyl-1,4-dithia-7-azaspiro[4.4]-nonane-8-carboxylic acids
Abstract:This invention relates to 7-carboxyalkyl-aminoacyl-1,4-adithia-7-azaspiro[4.4]nonane-8-carboxylic acids. The compounds of the invention are useful in the treatment of cardiovascular disorders and especially as antihypertensive agents.
Inventor(s): Gold; Elijah H. (West Orange, NJ), Neustadt; Bernard R. (West Orange, NJ), Smith; Elizabeth M. (Verona, NJ)
Assignee: Schering Corporation (Kenilworth, NJ)
Application Number:06/446,929
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

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International Patent Family for Patent: 4,470,972

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Denmark140886► Subscribe
Denmark462581► Subscribe
Denmark161523► Subscribe
European Patent Office0050800► Subscribe96C0028Belgium► Subscribe
Spain8308838► Subscribe
Spain506414► Subscribe
European Patent Office0190224► Subscribe
Hong Kong36189► Subscribe
Hungary193146► Subscribe
Greece75059► 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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