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Expired European patentEurope

High-sensitivity thermosensitive multilayer film and method for production of plate-making stencil sheet

EP 0377935 B1 · Applicant: Asahi Kasei Kogyo Kabushiki Kaisha

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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 July 19, 1989 and granted November 29, 1995. A European patent lasts at most 20 years from filing, so its term ended July 19, 2009.
  • 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 January 19, 2015.
  • 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.
FiledJuly 19, 1989
PublishedJuly 18, 1990
GrantedNovember 29, 1995
Term endedJuly 19, 2009
Application numberEP 89307285
Classification (CPC)B41N1/245

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJuly 19, 1989PublishedJuly 18, 1990Patent grantedNov 29, 1995Term endedJuly 19, 2009

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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