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Generated: July 20, 2017

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Details for Patent: 4,278,689

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Summary for Patent: 4,278,689

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 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:06/063,285
Patent Claim Types:
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Composition; Compound;

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International Patent Family for Patent: 4,278,689

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina225884► Subscribe
Australia3877678► Subscribe
Australia527103► Subscribe
AustriaA590678► Subscribe
Austria359484► 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 500+ biopharmaceutical companies globally:

Chinese Patent Office
Queensland Health

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