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Expired European patentEurope

Workpiece machining process on a nc automatic lathe and nc automatic lathe

EP 0717669 B1 · Applicant: INDEX-WERKE GMBH & CO. KG HAHN & TESSKY

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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 13, 1994 and granted April 28, 1999. A European patent lasts at most 20 years from filing, so its term ended August 13, 2014.
  • 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 13, 2020.
  • 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 13, 1994
PublishedJune 26, 1996
GrantedApril 28, 1999
Term endedAugust 13, 2014
Application numberEP 94924875
Classification (CPC)B23Q1/017 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedAug 13, 1994PublishedJune 26, 1996Patent grantedApril 28, 1999Term endedAug 13, 2014

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