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Expired European patentEurope

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EP 0081608 B1 · Applicant: Pfeifer Seil- und Hebetechnik GmbH & Co.

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Overview

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

Read the whole patent

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 16, 1981 and granted January 15, 1986. A European patent lasts at most 20 years from filing, so its term ended December 16, 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 June 16, 2007.
  • 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 16, 1981
PublishedJune 22, 1983
GrantedJanuary 15, 1986
Term endedDecember 16, 2001
Application numberEP 81110501
Classification (CPC)E04B1/1906

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedDec 16, 1981PublishedJune 22, 1983Patent grantedJan 15, 1986Term endedDec 16, 2001

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