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Expired European patentEurope

NMR apparatus including an rf coil assembly for generating a homogeneous rf field in a working region externally of the apparatus

EP 0670044 B1 · Applicant: OXFORD INSTRUMENTS PLC

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Overview

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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 November 18, 1993 and granted August 12, 1998. A European patent lasts at most 20 years from filing, so its term ended November 18, 2013.
  • 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 May 18, 2019.
  • 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.
FiledNovember 18, 1993
PublishedSeptember 6, 1995
GrantedAugust 12, 1998
Term endedNovember 18, 2013
Application numberEP 93924779
Classification (CPC)G01R33/3808 +1 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedNov 18, 1993PublishedSep 6, 1995Patent grantedAug 12, 1998Term endedNov 18, 2013

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