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Expired European patentEurope

Management method for reproduction errors and disk drive making use of the method

EP 1158518 B1 · Applicant: Hitachi Global Storage Technologies Japan, Ltd.

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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 November 15, 2000 and granted October 13, 2004. A European patent lasts at most 20 years from filing, so its term ended November 15, 2020.
  • 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 May 15, 2026.
  • 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.
FiledNovember 15, 2000
PublishedNovember 28, 2001
GrantedOctober 13, 2004
Term endedNovember 15, 2020
Application numberEP 00124913
Classification (CPC)G11B20/18 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedNov 15, 2000PublishedNov 28, 2001Patent grantedOct 13, 2004Term endedNov 15, 2020

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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