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Device for coupling a light source with divergent radiation to an optical fibre and method for the realisation of such a device

EP 0025728 A1 · Applicant: THOMSON-CSF

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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 13, 1980 and never granted as a European patent. Had it been granted, its 20-year term would have ended August 13, 2000.
  • 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 February 13, 2006.
  • 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 13, 1980
PublishedMarch 25, 1981
GrantedNever granted
Term endedAugust 13, 2000
Application numberEP 80401187
Classification (CPC)G02B6/2552 +2 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedAug 13, 1980PublishedMarch 25, 1981Term endedAug 13, 2000

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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