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Expired European patentEurope

Process for detackifying photopolymer flexographic printing plates

EP 0307835 B1 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

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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 September 10, 1988 and granted February 19, 1992. A European patent lasts at most 20 years from filing, so its term ended September 10, 2008.
  • 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 March 10, 2014.
  • 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.
FiledSeptember 10, 1988
PublishedMarch 22, 1989
GrantedFebruary 19, 1992
Term endedSeptember 10, 2008
Application numberEP 88114850
Classification (CPC)G03F7/40

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedSep 10, 1988PublishedMarch 22, 1989Patent grantedFeb 19, 1992Term endedSep 10, 2008

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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