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Expired European patentEurope

Distributed flight condition data validation system and method

EP 0244344 B1 · Applicant: UNITED TECHNOLOGIES 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 April 30, 1987 and granted January 24, 1990. A European patent lasts at most 20 years from filing, so its term ended April 30, 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 October 30, 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.
FiledApril 30, 1987
PublishedNovember 4, 1987
GrantedJanuary 24, 1990
Term endedApril 30, 2007
Application numberEP 87630077
Classification (CPC)F02C9/28

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedApril 30, 1987PublishedNov 4, 1987Patent grantedJan 24, 1990Term endedApril 30, 2007

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