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Expired European patentEurope

Polarized light emitting light guide plate, method of manufacturing the same and illuminator for flat panel display device using polarized light emitting light guide plate

EP 1818697 B1 · Applicant: Samsung Electronics Co., 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 August 16, 2006 and granted May 19, 2010. A European patent lasts at most 20 years from filing, so its term ended August 16, 2026.
  • 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.
FiledAugust 16, 2006
PublishedAugust 15, 2007
GrantedMay 19, 2010
Term endedAugust 16, 2026
Application numberEP 06254306
Classification (CPC)G02B6/0056 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedAug 16, 2006PublishedAug 15, 2007Patent grantedMay 19, 2010Term endedAug 16, 2026

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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