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Expired European patentEurope

Safety shutdown system for a WDM fiber optic communications network

EP 1182809 B1 · Applicant: Alcatel USA Sourcing, L.P.

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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 21, 2001 and granted June 20, 2007. A European patent lasts at most 20 years from filing, so its term ended April 21, 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 21, 2001
PublishedFebruary 27, 2002
GrantedJune 20, 2007
Term endedApril 21, 2021
Application numberEP 01109805
Classification (CPC)H04B10/291 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedApril 21, 2001PublishedFeb 27, 2002Patent grantedJune 20, 2007Term endedApril 21, 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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