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Expired European patentEurope

Metal interconnection system with a planar surface

EP 0195977 B1 · Applicant: Hewlett-Packard Company

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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 March 11, 1986 and granted September 28, 1994. A European patent lasts at most 20 years from filing, so its term ended March 11, 2006.
  • 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 September 11, 2011.
  • 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.
FiledMarch 11, 1986
PublishedOctober 1, 1986
GrantedSeptember 28, 1994
Term endedMarch 11, 2006
Application numberEP 86103235
Classification (CPC)H10W20/42 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMarch 11, 1986PublishedOct 1, 1986Patent grantedSep 28, 1994Term endedMarch 11, 2006

Sources & verification