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Expired European patentEurope

Image reading imaging optical system and image reading apparatus using the same

EP 1667420 B1 · Applicant: CANON KABUSHIKI KAISHA

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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 4, 2002 and granted May 19, 2010. A European patent lasts at most 20 years from filing, so its term ended March 4, 2022.
  • 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 4, 2002
PublishedJune 7, 2006
GrantedMay 19, 2010
Term endedMarch 4, 2022
Application numberEP 06075707
Classification (CPC)G02B17/004 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedMarch 4, 2002PublishedJune 7, 2006Patent grantedMay 19, 2010Term endedMarch 4, 2022

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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