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Expired European patentEurope

Quadrature surface coils for magnetic resonance imaging

EP 0388451 B1 · Applicant: PICKER INTERNATIONAL, INC.

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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 August 16, 1989 and granted May 25, 1994. A European patent lasts at most 20 years from filing, so its term ended August 16, 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 February 16, 2015.
  • 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.
FiledAugust 16, 1989
PublishedSeptember 26, 1990
GrantedMay 25, 1994
Term endedAugust 16, 2009
Application numberEP 89909788
Classification (CPC)G01R33/3678 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedAug 16, 1989PublishedSep 26, 1990Patent grantedMay 25, 1994Term endedAug 16, 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

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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