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Expired European patentEurope

Self-levelling device

EP 0063121 B1 · Applicant: BRINKERS, Gerardus Cornelis

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 June 30, 1981 and granted September 18, 1985. A European patent lasts at most 20 years from filing, so its term ended June 30, 2001.
  • 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 December 30, 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.
FiledJune 30, 1981
PublishedOctober 27, 1982
GrantedSeptember 18, 1985
Term endedJune 30, 2001
Application numberEP 81901919
Classification (CPC)B65G1/07

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedJune 30, 1981PublishedOct 27, 1982Patent grantedSep 18, 1985Term endedJune 30, 2001

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