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EP 0331874 B1 · Applicant: fischerwerke Artur Fischer GmbH & Co. KG

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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 January 12, 1989 and granted April 10, 1991. A European patent lasts at most 20 years from filing, so its term ended January 12, 2009.
  • 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 12, 2014.
  • 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 12, 1989
PublishedSeptember 13, 1989
GrantedApril 10, 1991
Term endedJanuary 12, 2009
Application numberEP 89100460
Classification (CPC)F16B13/00 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJan 12, 1989PublishedSep 13, 1989Patent grantedApril 10, 1991Term endedJan 12, 2009

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