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Expired European patentEurope

Method of making adapter for multipole magnetic plate of metalworking machine

EP 0259491 B1 · Applicant: INSTITUT ELEKTROSVARKI IMENI E.O.PATONA AKADEMII NAUK UKRAINSKOI SSR

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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 January 24, 1986 and granted January 23, 1991. A European patent lasts at most 20 years from filing, so its term ended January 24, 2006.
  • 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 July 24, 2011.
  • 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.
FiledJanuary 24, 1986
PublishedMarch 16, 1988
GrantedJanuary 23, 1991
Term endedJanuary 24, 2006
Application numberEP 86902575
Classification (CPC)B23Q3/15 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJan 24, 1986PublishedMarch 16, 1988Patent grantedJan 23, 1991Term endedJan 24, 2006

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