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Expired European patentEurope

Improvements in the joining of optical fibre cables

EP 0077115 B1 · Applicant: BRITISH TELECOMMUNICATIONS public limited company

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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 June 25, 1982 and granted September 24, 1986. A European patent lasts at most 20 years from filing, so its term ended June 25, 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 December 25, 2007.
  • 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.
FiledJune 25, 1982
PublishedApril 20, 1983
GrantedSeptember 24, 1986
Term endedJune 25, 2002
Application numberEP 82303334
Classification (CPC)G02B6/44465

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedJune 25, 1982PublishedApril 20, 1983Patent grantedSep 24, 1986Term endedJune 25, 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

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