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Expired European patentEurope

Circuitry and method for provisioning mixed-rate signals in optical communication networks

EP 1198087 B1 · Applicant: LUCENT TECHNOLOGIES INC.

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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 14, 2001 and granted May 6, 2004. A European patent lasts at most 20 years from filing, so its term ended August 14, 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.
FiledAugust 14, 2001
PublishedApril 17, 2002
GrantedMay 6, 2004
Term endedAugust 14, 2021
Application numberEP 01306896
Classification (CPC)H04J3/085 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedAug 14, 2001PublishedApril 17, 2002Patent grantedMay 6, 2004Term endedAug 14, 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

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