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Expired European patentEurope

Movable platform for assembling roof supports in lengths of mining tunnels

EP 0059972 B1 · Applicant: GTA GmbH - Fertigungsbetrieb und Ingenieurbüro für Grubenbedarf Transport- und Ausbautechnik

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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.

Why it's free to use

  • Filed March 9, 1982 and granted July 17, 1985. A European patent lasts at most 20 years from filing, so its term ended March 9, 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 September 9, 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.
FiledMarch 9, 1982
PublishedSeptember 15, 1982
GrantedJuly 17, 1985
Term endedMarch 9, 2002
Application numberEP 82101840
Classification (CPC)E21D11/40

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedMarch 9, 1982PublishedSep 15, 1982Patent grantedJuly 17, 1985Term endedMarch 9, 2002

Sources & verification