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Expired European patentEurope

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EP 0138342 B1 · Applicant: The Wiggins Teape Group Limited

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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 August 28, 1984 and granted May 11, 1988. A European patent lasts at most 20 years from filing, so its term ended August 28, 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 February 28, 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.
FiledAugust 28, 1984
PublishedApril 24, 1985
GrantedMay 11, 1988
Term endedAugust 28, 2004
Application numberEP 84305860
Classification (CPC)B41M5/1555

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedAug 28, 1984PublishedApril 24, 1985Patent grantedMay 11, 1988Term endedAug 28, 2004

Sources & verification