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Expired European patentEurope

Optical fiber resistant to hydrogen-induced attenuation

EP 0772061 B1 · Applicant: CORNING INCORPORATED

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Overview

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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 October 30, 1996 and granted July 23, 2003. A European patent lasts at most 20 years from filing, so its term ended October 30, 2016.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by April 30, 2022.
  • 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.
FiledOctober 30, 1996
PublishedMay 7, 1997
GrantedJuly 23, 2003
Term endedOctober 30, 2016
Application numberEP 96117397
Classification (CPC)G02B6/02 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedOct 30, 1996PublishedMay 7, 1997Patent grantedJuly 23, 2003Term endedOct 30, 2016

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.