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Expired European patentEurope

Binary encoding method for data read from optical record and device therefor

EP 0202773 B1 · Applicant: CSK CORPORATION

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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 18, 1986 and granted January 16, 1991. A European patent lasts at most 20 years from filing, so its term ended April 18, 2006.
  • 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 18, 2011.
  • 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 18, 1986
PublishedNovember 26, 1986
GrantedJanuary 16, 1991
Term endedApril 18, 2006
Application numberEP 86302928
Classification (CPC)G11B20/1419

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedApril 18, 1986PublishedNov 26, 1986Patent grantedJan 16, 1991Term endedApril 18, 2006

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.