Expired European patentEurope
17-side chain alkynyl-and 20-oxopregna-derivatives of vitamin d, methods for their production and pharmaceutical compositions thereof
EP 0874815 B1 · Applicant: RESEARCH INSTITUTE FOR MEDICINE AND CHEMISTRY INC.
Overview
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 23, 1996 and granted April 18, 2001. A European patent lasts at most 20 years from filing, so its term ended December 23, 2016.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by June 23, 2022.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledDecember 23, 1996
PublishedNovember 4, 1998
GrantedApril 18, 2001
Term endedDecember 23, 2016
Application numberEP 96943236
Classification (CPC)A61P15/00 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.