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Expired European patentEurope

PROCESS FOR PREPARING $g(a)-HYDROXY CARBONYL COMPOUNDS

EP 0245315 B1 · Applicant: L. GIVAUDAN & CIE Société Anonyme

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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.

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Why it's free to use

  • Filed November 13, 1986 and granted April 11, 1990. A European patent lasts at most 20 years from filing, so its term ended November 13, 2006.
  • 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 May 13, 2012.
  • 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.
FiledNovember 13, 1986
PublishedNovember 19, 1987
GrantedApril 11, 1990
Term endedNovember 13, 2006
Application numberEP 86906259
Classification (CPC)C07C49/753 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedNov 13, 1986PublishedNov 19, 1987Patent grantedApril 11, 1990Term endedNov 13, 2006

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.