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Expired European patentEurope

Dispersion-compensating fiber and method of fabricating the same

EP 0762159 B1 · Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

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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 August 30, 1996 and granted October 22, 2003. A European patent lasts at most 20 years from filing, so its term ended August 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 March 2, 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.
FiledAugust 30, 1996
PublishedMarch 12, 1997
GrantedOctober 22, 2003
Term endedAugust 30, 2016
Application numberEP 96113926
Classification (CPC)G02B6/02261 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedAug 30, 1996PublishedMarch 12, 1997Patent grantedOct 22, 2003Term endedAug 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

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