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Generated: October 16, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,105,659

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Summary for Patent: 4,105,659

Title: 1,2,3,4,5,6-Hexahydro-2,6-methano-3-benzazocines
Abstract:1,2,3,4,5,6-Hexahydro-3-lower alkenyl-6-(R.sup.1)-11-(R.sup.2)-8-hydroxy-2,6-methano-3-benzazocines, wherein R.sup.1 and R.sup.2 are hydrogen or lower alkyl, and certain ethers and esters thereof, are obtained from analogous 3-unsubstituted compounds. The products have pharmacodynamic activity and are useful as antagonists of strong analgesic agents, such as morphine and meperidine, and are useful in humans as agents for producing analgesia.
Inventor(s): Archer; Sydney (Bethlehem, NY)
Assignee: Sterling Drug Inc. (New York, NY)
Application Number:04/342,768
Patent Claim Types:
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Compound;

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International Patent Family for Patent: 4,105,659

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria246157► Subscribe
Austria252248► Subscribe
Belgium611000► Subscribe
Brazil6134479► Subscribe
Switzerland410960► Subscribe
Germany1445153► Subscribe
Denmark103236► Subscribe
United Kingdom1000506► Subscribe
Malaysia6600127► Subscribe
Netherlands6705465► 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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