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Expired European patentEurope

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EP 0757350 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 August 2, 1996 and granted July 14, 2004. A European patent lasts at most 20 years from filing, so its term ended August 2, 2016.
  • 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 February 2, 2022.
  • 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.
FiledAugust 2, 1996
PublishedFebruary 5, 1997
GrantedJuly 14, 2004
Term endedAugust 2, 2016
Application numberEP 96112573
Classification (CPC)G11B19/02 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedAug 2, 1996PublishedFeb 5, 1997Patent grantedJuly 14, 2004Term endedAug 2, 2016

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