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Expired European patentEurope

Device for nuclear reactor control by vertical displacement of a neutron-absorbing assembly

EP 0031763 B1 · Applicant: FRAMATOME

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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 December 18, 1980 and granted March 14, 1984. A European patent lasts at most 20 years from filing, so its term ended December 18, 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 June 18, 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.
FiledDecember 18, 1980
PublishedJuly 8, 1981
GrantedMarch 14, 1984
Term endedDecember 18, 2000
Application numberEP 80401818
Classification (CPC)G21C7/12

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedDec 18, 1980PublishedJuly 8, 1981Patent grantedMarch 14, 1984Term endedDec 18, 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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