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Expired European patentEurope

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EP 0160098 B1 · Applicant: SONY CORPORATION

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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.

Why it's free to use

  • Filed October 15, 1984 and granted July 10, 1991. A European patent lasts at most 20 years from filing, so its term ended October 15, 2004.
  • 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 April 15, 2010.
  • 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.
FiledOctober 15, 1984
PublishedNovember 6, 1985
GrantedJuly 10, 1991
Term endedOctober 15, 2004
Application numberEP 84903765
Classification (CPC)B41M5/44

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedOct 15, 1984PublishedNov 6, 1985Patent grantedJuly 10, 1991Term endedOct 15, 2004

Sources & verification