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Expired European patentEurope

Optical information recording method and optical information recording medium

EP 1679699 B1 · Applicant: Optware Corporation

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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 October 21, 2004 and granted April 18, 2012. A European patent lasts at most 20 years from filing, so its term ended October 21, 2024.
  • 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.
FiledOctober 21, 2004
PublishedJuly 12, 2006
GrantedApril 18, 2012
Term endedOctober 21, 2024
Application numberEP 04792753
Classification (CPC)G03H1/04 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedOct 21, 2004PublishedJuly 12, 2006Patent grantedApril 18, 2012Term endedOct 21, 2024

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.