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Serving leading biopharmaceutical companies globally:

Express Scripts
Cantor Fitzgerald
Boehringer Ingelheim
Harvard Business School

Generated: December 13, 2017

DrugPatentWatch Database Preview

Details for Patent: 3,957,982

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Summary for Patent: 3,957,982

Title: Method for contraception by the application of combination-type sequential preparations
Abstract:Method of contraception in which an estrogen and a progestagen are orally administered daily for 21 days, the first 4-6 days at a low contraceptively effective daily dose, the next 4-6 days at a daily estrogen dose 1-2 times and a daily progestrogen dose 1-1.5 times that of the first 4-6 days, and for the next 9-11 days at a daily estrogen dose from that of the first 4-6 days to that of the next 4-6 days and a daily progestogen dose higher than either prior daily dose, up to 3 times that of the initial dose, followed by 7 days without hormone administration.
Inventor(s): Lachnit-Fixson; Ursula (Berlin, DT), Pitchford; Alan G. (High Hurstwood, near Uckfield, EN)
Assignee: Schering Aktiengesellschaft (Berlin & Bergkamen, DT)
Application Number:05/535,575
Patent Claim Types:
see list of patent claims
Use; Delivery; Composition; Dosage form;

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Foreign Priority and PCT Information for Patent: 3,957,982

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
2365103Dec 21, 1973

International Patent Family for Patent: 3,957,982

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia7670874► Subscribe
Belgium823689► Subscribe
Canada1029303► Subscribe
Cyprus1065► Subscribe
Germany2365103► Subscribe
Denmark155308► Subscribe
Denmark667674► Subscribe
United Kingdom1490099► Subscribe
Hong Kong47080► Subscribe
Kenya3059► 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:

Johnson and Johnson
US Department of Justice
Farmers Insurance
Daiichi Sankyo

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