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Expired European patentEurope

Optical fiber with reduced attenuation loss

EP 1497237 B1 · Applicant: Pirelli & C. S.p.A.

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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 24, 2002 and granted November 14, 2007. A European patent lasts at most 20 years from filing, so its term ended April 24, 2022.
  • 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 24, 2002
PublishedJanuary 19, 2005
GrantedNovember 14, 2007
Term endedApril 24, 2022
Application numberEP 02745258
Classification (CPC)G02B6/02033 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedApril 24, 2002PublishedJan 19, 2005Patent grantedNov 14, 2007Term endedApril 24, 2022

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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