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Expired European patentEurope

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EP 0326085 B1 · Applicant: TSUDAKOMA KOGYO KABUSHIKI KAISHA

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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 24, 1989 and granted July 28, 1993. A European patent lasts at most 20 years from filing, so its term ended January 24, 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 24, 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 24, 1989
PublishedAugust 2, 1989
GrantedJuly 28, 1993
Term endedJanuary 24, 2009
Application numberEP 89101206
Classification (CPC)B21K21/08 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJan 24, 1989PublishedAug 2, 1989Patent grantedJuly 28, 1993Term endedJan 24, 2009

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