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Generated: December 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,820,738

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Summary for Patent: 4,820,738

Title: 1,4-bis(substituted-amino)-5,8-dihydroxy-anthraquinones and leuco bases thereof
Abstract:This disclosure describes symmetrical 1,4-bis(substituted-amino)-5,8-dihydroxyanthraquinones useful as chelating agents and for inducing regression and/or palliation of cancer diseases in mammals.
Inventor(s): Murdock; Keith C. (Pearl River, NY), Durr; Frederick E. (Ridgewood, NJ)
Assignee: American Cyanamid Company (Stamford, CT)
Application Number:06/823,265
Patent Claim Types:
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International Patent Family for Patent: 4,820,738

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Ireland47253► Subscribe
Argentina225884► Subscribe
AustriaA590678► Subscribe
Austria359484► Subscribe
Australia527103► Subscribe
Australia3877678► Subscribe
Belgium869688► Subscribe
Canada1099213► Subscribe
Canada1099710► Subscribe
Canada1116522► 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:

Federal Trade Commission
Daiichi Sankyo

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