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Expired European patentEurope

Method of removing unwanted charged particles from the measuring cell of an ICR spectrometer

EP 0259596 B1 · Applicant: Spectrospin AG

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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 July 31, 1987 and granted September 19, 1990. A European patent lasts at most 20 years from filing, so its term ended July 31, 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 January 31, 2013.
  • 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.
FiledJuly 31, 1987
PublishedMarch 16, 1988
GrantedSeptember 19, 1990
Term endedJuly 31, 2007
Application numberEP 87111091
Classification (CPC)G01R33/64 +1 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJuly 31, 1987PublishedMarch 16, 1988Patent grantedSep 19, 1990Term endedJuly 31, 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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