Expired European patentEurope
Guaiacol esters of alpha- and beta-mercaptopropionylalanine and alpha- and beta-mercaptopropionylglycine, process for their preparation and pharmaceutical compositions containing same
EP 0013261 B1 · Applicant: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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 14, 1979 and granted December 1, 1982. A European patent lasts at most 20 years from filing, so its term ended December 14, 1999.
- 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 14, 2005.
- 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 14, 1979
PublishedJuly 9, 1980
GrantedDecember 1, 1982
Term endedDecember 14, 1999
Application numberEP 79830052
Classification (CPC)C07C321/00 +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.