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Expired European patentEurope

A material working machine, particularly a pavement planer

EP 0023930 B1 · Applicant: The Gurries Co.

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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 August 8, 1979 and granted February 15, 1984. A European patent lasts at most 20 years from filing, so its term ended August 8, 1999.
  • 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 February 8, 2005.
  • 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.
FiledAugust 8, 1979
PublishedFebruary 18, 1981
GrantedFebruary 15, 1984
Term endedAugust 8, 1999
Application numberEP 79102867
Classification (CPC)E01C23/122 +2 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedAug 8, 1979PublishedFeb 18, 1981Patent grantedFeb 15, 1984Term endedAug 8, 1999

Sources & verification