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European application, no grantEurope

High speed digital position monitoring system

EP 0054935 A2 · Applicant: KEARNEY & TRECKER CORPORATION

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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 December 18, 1981 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 18, 2001.
  • 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 June 18, 2007.
  • 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.
FiledDecember 18, 1981
PublishedJune 30, 1982
GrantedNever granted
Term endedDecember 18, 2001
Application numberEP 81110593
Classification (CPC)G05B19/351

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedDec 18, 1981PublishedJune 30, 1982Term endedDec 18, 2001

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