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Serving leading biopharmaceutical companies globally:

Queensland Health
Merck
Deloitte
Cerilliant
Teva
Medtronic
Federal Trade Commission
Fish and Richardson
US Department of Justice
US Army

Generated: November 19, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,197,249

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Summary for Patent: 4,197,249

Title: 1,4-Bis(substituted-amino)-5,8-dihydroxyanthraquinones and leuco bases thereof
Abstract:This disclosure describes symmetrical 1,4-bis(substituted-amino)-5,8-dihydroxyanthraquinones useful as chelating agents and for inhibiting the growth of transplanted mouse tumors.
Inventor(s): Murdock; Keith C. (Pearl River, NY), Durr; Frederick E. (Ridgewood, NJ)
Assignee: American Cyanamid Company (Stamford, CT)
Application Number:05/923,602
Patent Claim Types:
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Compound;

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International Patent Family for Patent: 4,197,249

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina225884► Subscribe
AustriaA590678► Subscribe
Austria359484► Subscribe
Australia527103► Subscribe
Australia3877678► Subscribe
Belgium869688► Subscribe
Canada1099213► Subscribe
Canada1099710► Subscribe
Canada1116522► Subscribe
Canada1140923► 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:

Accenture
Express Scripts
Chinese Patent Office
McKinsey
Mallinckrodt
Colorcon
Baxter
Harvard Business School
Citi
Merck

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