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Expired European patentEurope

Method and apparatus for tapping a pipeline in a controlled atmosphere, particularly a nuclear plant pipeline

EP 0120782 B1 · Applicant: ELECTRICITE DE FRANCE Service National

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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 March 22, 1984 and granted August 13, 1986. A European patent lasts at most 20 years from filing, so its term ended March 22, 2004.
  • 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 22, 2009.
  • 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 22, 1984
PublishedOctober 3, 1984
GrantedAugust 13, 1986
Term endedMarch 22, 2004
Application numberEP 84400585
Classification (CPC)F16L41/04

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedMarch 22, 1984PublishedOct 3, 1984Patent grantedAug 13, 1986Term endedMarch 22, 2004

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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