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Expired European patentEurope

MRI compensated for spurious NMR frequency/phase shifts caused by spurious changes in magnetic fields during NMR data measurement processes

EP 0337588 B1 · Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

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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.

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Why it's free to use

  • Filed January 10, 1989 and granted August 30, 1995. A European patent lasts at most 20 years from filing, so its term ended January 10, 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 July 10, 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.
FiledJanuary 10, 1989
PublishedOctober 18, 1989
GrantedAugust 30, 1995
Term endedJanuary 10, 2009
Application numberEP 89300168
Classification (CPC)G01R33/583 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJan 10, 1989PublishedOct 18, 1989Patent grantedAug 30, 1995Term endedJan 10, 2009

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

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