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Expired European patentEurope

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EP 0137571 B1 · Applicant: Vital Scientific N.V.

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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 October 11, 1984 and granted May 31, 1989. A European patent lasts at most 20 years from filing, so its term ended October 11, 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 April 11, 2010.
  • 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.
FiledOctober 11, 1984
PublishedApril 17, 1985
GrantedMay 31, 1989
Term endedOctober 11, 2004
Application numberEP 84201467
Classification (CPC)G01N21/05

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedOct 11, 1984PublishedApril 17, 1985Patent grantedMay 31, 1989Term endedOct 11, 2004

Sources & verification