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Expired European patentEurope

Semiconductor light emitting device capable of suppressing silver migration of reflection film made of silver

EP 1583159 B1 · Applicant: Stanley Electric 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 October 13, 2004 and granted January 30, 2019. A European patent lasts at most 20 years from filing, so its term ended October 13, 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 13, 2004
PublishedOctober 5, 2005
GrantedJanuary 30, 2019
Term endedOctober 13, 2024
Application numberEP 04024366
Classification (CPC)H10H20/832 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedOct 13, 2004PublishedOct 5, 2005Patent grantedJan 30, 2019Term endedOct 13, 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

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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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