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Expired European patentEurope

Virtual storage system and control method thereof

EP 1821186 B1 · Applicant: HITACHI, 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 June 16, 2006 and granted November 12, 2014. A European patent lasts at most 20 years from filing, so its term ended June 16, 2026.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledJune 16, 2006
PublishedAugust 22, 2007
GrantedNovember 12, 2014
Term endedJune 16, 2026
Application numberEP 06253133
Classification (CPC)G06F3/0662 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedJune 16, 2006PublishedAug 22, 2007Patent grantedNov 12, 2014Term endedJune 16, 2026

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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