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EP 0686316 B1 · Applicant: KNURR-MECHANIK FUR DIE ELEKTRONIK AKTIENGESELLSCHAFT

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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 21, 1994 and granted November 20, 1996. A European patent lasts at most 20 years from filing, so its term ended February 21, 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 August 21, 2019.
  • 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 21, 1994
PublishedDecember 13, 1995
GrantedNovember 20, 1996
Term endedFebruary 21, 2014
Application numberEP 94909014
Classification (CPC)H05K7/183

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedFeb 21, 1994PublishedDec 13, 1995Patent grantedNov 20, 1996Term endedFeb 21, 2014

Sources & verification