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Expired European patentEurope

Compound

EP 0139675 B1 · Applicant: LKB-Produkter AB

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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 March 13, 1984 and granted January 28, 1987. A European patent lasts at most 20 years from filing, so its term ended March 13, 2004.
  • 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 September 13, 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.
FiledMarch 13, 1984
PublishedMay 8, 1985
GrantedJanuary 28, 1987
Term endedMarch 13, 2004
Application numberEP 84901128
Classification (CPC)C07F9/3817 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedMarch 13, 1984PublishedMay 8, 1985Patent grantedJan 28, 1987Term endedMarch 13, 2004

Sources & verification