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Expired European patentEurope

Retrieval system for the automatic selection and orderly grouping of articles

EP 0403726 B1 · Applicant: WILTSCHE GMBH

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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 February 15, 1990 and granted February 19, 1992. A European patent lasts at most 20 years from filing, so its term ended February 15, 2010.
  • 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 August 15, 2015.
  • 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.
FiledFebruary 15, 1990
PublishedDecember 27, 1990
GrantedFebruary 19, 1992
Term endedFebruary 15, 2010
Application numberEP 90102935
Classification (CPC)B65G1/1376

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedFeb 15, 1990PublishedDec 27, 1990Patent grantedFeb 19, 1992Term endedFeb 15, 2010

Sources & verification