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Expired European patentEurope

Rotor wheel of a turbo jet engine comprising a device for axially and radially retaining the rotor blades on the rotor wheel

EP 0083289 B1 · Applicant: SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION, "S.N.E.C.M.A."

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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 December 28, 1982 and granted October 30, 1985. A European patent lasts at most 20 years from filing, so its term ended December 28, 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 June 28, 2008.
  • 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 28, 1982
PublishedJuly 6, 1983
GrantedOctober 30, 1985
Term endedDecember 28, 2002
Application numberEP 82402387
Classification (CPC)F01D5/323

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedDec 28, 1982PublishedJuly 6, 1983Patent grantedOct 30, 1985Term endedDec 28, 2002

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