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Expired European patentEurope

Method of driving a display unit

EP 0373565 B1 · Applicant: MATSUSHITA ELECTRIC INDUSTRIAL 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 December 11, 1989 and granted November 15, 1995. A European patent lasts at most 20 years from filing, so its term ended December 11, 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 June 11, 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.
FiledDecember 11, 1989
PublishedJune 20, 1990
GrantedNovember 15, 1995
Term endedDecember 11, 2009
Application numberEP 89122847
Classification (CPC)G09G3/3648 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedDec 11, 1989PublishedJune 20, 1990Patent grantedNov 15, 1995Term endedDec 11, 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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