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Expired European patentEurope

Polarization selecting prism for a projection device

EP 1694079 B1 · Applicant: SONY 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 September 30, 2002 and granted July 23, 2008. A European patent lasts at most 20 years from filing, so its term ended September 30, 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.
FiledSeptember 30, 2002
PublishedAugust 23, 2006
GrantedJuly 23, 2008
Term endedSeptember 30, 2022
Application numberEP 06076010
Classification (CPC)G02B27/283

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedSep 30, 2002PublishedAug 23, 2006Patent grantedJuly 23, 2008Term endedSep 30, 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

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.