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Expired European patentEurope

Thermosensitive recording material

EP 0509783 B1 · Applicant: NEW OJI PAPER CO., LTD.

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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 April 15, 1992 and granted July 19, 1995. A European patent lasts at most 20 years from filing, so its term ended April 15, 2012.
  • 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 October 15, 2017.
  • 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.
FiledApril 15, 1992
PublishedOctober 21, 1992
GrantedJuly 19, 1995
Term endedApril 15, 2012
Application numberEP 92303381
Classification (CPC)B41M5/3375

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedApril 15, 1992PublishedOct 21, 1992Patent grantedJuly 19, 1995Term endedApril 15, 2012

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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