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Expired European patentEurope

Turn controlling apparatus for z-type propulsion device

EP 0139766 B1 · Applicant: Niigata Engineering Co., Ltd.

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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 March 30, 1984 and granted March 15, 1989. A European patent lasts at most 20 years from filing, so its term ended March 30, 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 30, 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 30, 1984
PublishedMay 8, 1985
GrantedMarch 15, 1989
Term endedMarch 30, 2004
Application numberEP 84901407
Classification (CPC)B63H25/42 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedMarch 30, 1984PublishedMay 8, 1985Patent grantedMarch 15, 1989Term endedMarch 30, 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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