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Expired European patentEurope

Method of catalytically hydrolyzing alpha,beta-unsaturated carbonyl compounds

EP 0242934 B1 · Applicant: FRIES & FRIES, INC.

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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 January 13, 1987 and granted May 19, 1993. A European patent lasts at most 20 years from filing, so its term ended January 13, 2007.
  • 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 July 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.
FiledJanuary 13, 1987
PublishedOctober 28, 1987
GrantedMay 19, 1993
Term endedJanuary 13, 2007
Application numberEP 87300278
Classification (CPC)C07C45/00 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJan 13, 1987PublishedOct 28, 1987Patent grantedMay 19, 1993Term endedJan 13, 2007

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

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