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EP 0112686 B1 · Applicant: DEVELOPMENT FINANCE CORPORATION OF NEW ZEALAND

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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 14, 1983 and granted April 4, 1990. A European patent lasts at most 20 years from filing, so its term ended December 14, 2003.
  • 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 14, 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.
FiledDecember 14, 1983
PublishedJuly 4, 1984
GrantedApril 4, 1990
Term endedDecember 14, 2003
Application numberEP 83307602
Classification (CPC)A63D15/20

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedDec 14, 1983PublishedJuly 4, 1984Patent grantedApril 4, 1990Term endedDec 14, 2003

Sources & verification