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Expired European patentEurope

Interleaved pulse sequence for nmr image acquisition

EP 0264442 B1 · Applicant: DUKE UNIVERSITY

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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.

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Why it's free to use

  • Filed May 5, 1987 and granted February 16, 1994. A European patent lasts at most 20 years from filing, so its term ended May 5, 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 November 5, 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.
FiledMay 5, 1987
PublishedApril 27, 1988
GrantedFebruary 16, 1994
Term endedMay 5, 2007
Application numberEP 87903556
Classification (CPC)G01R33/4835

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedMay 5, 1987PublishedApril 27, 1988Patent grantedFeb 16, 1994Term endedMay 5, 2007

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

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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