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Expired European patentEurope

Methods and circuit for implementing an arbitrary graph on a polymorphic mesh

EP 0341406 B1 · Applicant: International Business Machines Corporation

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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 22, 1989 and granted May 24, 1995. A European patent lasts at most 20 years from filing, so its term ended March 22, 2009.
  • 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 22, 2014.
  • 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 22, 1989
PublishedNovember 15, 1989
GrantedMay 24, 1995
Term endedMarch 22, 2009
Application numberEP 89105327
Classification (CPC)G06F15/8023

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedMarch 22, 1989PublishedNov 15, 1989Patent grantedMay 24, 1995Term endedMarch 22, 2009

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