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Inventions Industrial DesignTechnological Information
Process for the preparation of Drospirenon (6?, 7?; 15?,16?-Dimethylene-3-oxo-17alpha-pregn-4-ene-21,17-carbolactone, DRSP)

No-Receipt date 2014-02345 - 07/08/2014
No-Filing date 20140401569 - 07/08/2014
No-Granting date 3084038 - 22/08/2014
No-EPO application date 09100011.7 - 11/08/1997
No-EPO granting date 2168974 - 02/07/2014
Gazette No-Publication date of application -
Gazette No-Publication date of granted patent 8/2014 - 30/09/2014
Expiration date 12/08/2017
Kind of title Validation of European Patent
Legal status NOT VALID
Priorities DE1963368512/08/1996/DE
Active Substance of Supplementary Certificates -

IPC Classification
Ipc Class
C07J 53/00

Related Documents

Related Titles

Owners
CodeFirstnameSurnameAddressTownZIPCountry
551911 BAYER INTELLECTUAL PROPERTY GMBH ALFRED-NOBEL-STR. 1040789 MONHEIM AM RHEIN GERMANY

Inventors
CodeFirstnameSurname
1329024 MOHR, JORG-THORSTEN
1329025 NICKISCH, KLAUS

Representatives
CodeFirstnameSurnameAddressTownZip
1602AIKATERINISIOTOUPATISION 122ATHINA (ATTIKIS)11257

Contact
CodeFirstnameSurnameAddressTownZipCountry
4766AIKATERINISIOTOUPATISION (28IS OKTOVRIOU) 122ATHINA (ATTIKIS)11257 GREECE

Owners History

Title Instruments
DateOperationDescreption
9/6/2017 12:00:00 AMΛήξη Προστασίας Τίτλων (79600) 79600

Payments history 20 renewals have been done
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