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Expired European patentEurope

Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the same

EP 1716562 B1 · Applicant: Ricoh Company, 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 March 2, 2006 and granted July 1, 2009. A European patent lasts at most 20 years from filing, so its term ended March 2, 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.
FiledMarch 2, 2006
PublishedNovember 2, 2006
GrantedJuly 1, 2009
Term endedMarch 2, 2026
Application numberEP 06728810
Classification (CPC)G11B7/0062 +1 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMarch 2, 2006PublishedNov 2, 2006Patent grantedJuly 1, 2009Term endedMarch 2, 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

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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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