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Expired European patentEurope

Continuously variable fiber optic delay line

EP 0126065 B1 · Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

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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 November 12, 1982 and granted March 14, 1990. A European patent lasts at most 20 years from filing, so its term ended November 12, 2002.
  • 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 May 12, 2008.
  • 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.
FiledNovember 12, 1982
PublishedNovember 28, 1984
GrantedMarch 14, 1990
Term endedNovember 12, 2002
Application numberEP 83900215
Classification (CPC)G02B6/2861 +2 more

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedNov 12, 1982PublishedNov 28, 1984Patent grantedMarch 14, 1990Term endedNov 12, 2002

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.