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Expired European patentEurope

Twin screw extruder

EP 1013402 B1 · Applicant: Coperion Werner & Pfleiderer GmbH & Co. KG

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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 December 4, 1999 and granted April 15, 2009. A European patent lasts at most 20 years from filing, so its term ended December 4, 2019.
  • 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 June 4, 2025.
  • 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.
FiledDecember 4, 1999
PublishedJune 28, 2000
GrantedApril 15, 2009
Term endedDecember 4, 2019
Application numberEP 99124263
Classification (CPC)B29C48/395 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedDec 4, 1999PublishedJune 28, 2000Patent grantedApril 15, 2009Term endedDec 4, 2019

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