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Serving leading biopharmaceutical companies globally:

Farmers Insurance
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Generated: November 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,808,616

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Summary for Patent: 4,808,616

Title: 6-substituted androsta-1,4-diene-3,17-diones
Abstract:The invention relates to 6-alkylidenandrosta-1,4-diene-3,17-dione derivatives, having the following general formula ##STR1## wherein each of R and R.sub.2, independently, is hydrogen or C.sub.1 -C.sub.6 alkyl and R.sub.1 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl, which are useful in therapy, in particular in the treatment of hormone-dependent cancers.
Inventor(s): Buzzetti; Franco (Monza, IT), Barbugian; Natale (Milan, IT), Lombardi; Paolo (Milan, IT), di Salle; Enrico (Milan, IT)
Assignee: Farmitalia Carlo Erba S.r.l. (Milan, IT)
Application Number:06/882,364
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

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Foreign Priority and PCT Information for Patent: 4,808,616

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8517360Jul 09, 1985

International Patent Family for Patent: 4,808,616

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
France2584725► Subscribe
United Kingdom8616585► Subscribe
United Kingdom2177700► Subscribe
United Kingdom8517360► Subscribe
Greece861780► Subscribe
Hong Kong94190► Subscribe
Finland862871► Subscribe
Finland83424► Subscribe
Spain8802429► Subscribe
Spain557466► 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:

Farmers Insurance
Federal Trade Commission
Boehringer Ingelheim
Johnson and Johnson

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