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Expired European patentEurope

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EP 0140342 B1 · Applicant: Schlüter, Werner

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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.

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Why it's free to use

  • Filed October 25, 1984 and granted May 24, 1989. A European patent lasts at most 20 years from filing, so its term ended October 25, 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 25, 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 25, 1984
PublishedMay 8, 1985
GrantedMay 24, 1989
Term endedOctober 25, 2004
Application numberEP 84112891
Classification (CPC)E04F13/04 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedOct 25, 1984PublishedMay 8, 1985Patent grantedMay 24, 1989Term endedOct 25, 2004

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.