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Expired European patentEurope

Optical information recording employing improved recording power control scheme

EP 1860654 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 November 14, 2001 and granted March 4, 2009. A European patent lasts at most 20 years from filing, so its term ended November 14, 2021.
  • 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.
FiledNovember 14, 2001
PublishedNovember 28, 2007
GrantedMarch 4, 2009
Term endedNovember 14, 2021
Application numberEP 07017459
Classification (CPC)G11B7/0045 +1 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedNov 14, 2001PublishedNov 28, 2007Patent grantedMarch 4, 2009Term endedNov 14, 2021

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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