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Expired European patentEurope

Time-division multiplexed pump wavelengths resulting in ultra broad band, flat, backward pumped raman gain

EP 1148666 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 April 9, 2001 and granted December 12, 2007. A European patent lasts at most 20 years from filing, so its term ended April 9, 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.
FiledApril 9, 2001
PublishedOctober 24, 2001
GrantedDecember 12, 2007
Term endedApril 9, 2021
Application numberEP 01303340
Classification (CPC)H04B10/2916

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedApril 9, 2001PublishedOct 24, 2001Patent grantedDec 12, 2007Term endedApril 9, 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

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