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Expired European patentEurope

Non-blocking cyclic AWG-based node architectures

EP 1761103 B1 · Applicant: Lucent Technologies Nederland B.V.

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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 1, 2005 and granted July 6, 2011. A European patent lasts at most 20 years from filing, so its term ended September 1, 2025.
  • 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 1, 2005
PublishedMarch 7, 2007
GrantedJuly 6, 2011
Term endedSeptember 1, 2025
Application numberEP 05255353
Classification (CPC)H04Q11/0005

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedSep 1, 2005PublishedMarch 7, 2007Patent grantedJuly 6, 2011Term endedSep 1, 2025

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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