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Expired European patentEurope

Light emitting devices

EP 1686625 B1 · Applicant: Cambridge Display Technology Limited

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Overview

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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 June 21, 2001 and granted May 30, 2012. A European patent lasts at most 20 years from filing, so its term ended June 21, 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.
FiledJune 21, 2001
PublishedAugust 2, 2006
GrantedMay 30, 2012
Term endedJune 21, 2021
Application numberEP 06006481
Classification (CPC)H10K85/00 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedJune 21, 2001PublishedAug 2, 2006Patent grantedMay 30, 2012Term endedJune 21, 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

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