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Expired European patentEurope

Apparatus and method for estimating, from sparse data, the probability that a particular one of a set of events is the next event in a string of events

EP 0245595 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 February 27, 1987 and granted August 14, 1991. A European patent lasts at most 20 years from filing, so its term ended February 27, 2007.
  • 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 27, 2012.
  • 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 27, 1987
PublishedNovember 19, 1987
GrantedAugust 14, 1991
Term endedFebruary 27, 2007
Application numberEP 87102789
Classification (CPC)G10L15/00 +1 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedFeb 27, 1987PublishedNov 19, 1987Patent grantedAug 14, 1991Term endedFeb 27, 2007

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