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Expired European patentEurope

Ion test means having a hydrophilic carrier matrix

EP 0125554 B1 · Applicant: MILES INC.

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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 April 30, 1984 and granted July 27, 1988. A European patent lasts at most 20 years from filing, so its term ended April 30, 2004.
  • 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 October 30, 2009.
  • 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.
FiledApril 30, 1984
PublishedNovember 21, 1984
GrantedJuly 27, 1988
Term endedApril 30, 2004
Application numberEP 84104824
Classification (CPC)G01N31/22

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedApril 30, 1984PublishedNov 21, 1984Patent grantedJuly 27, 1988Term endedApril 30, 2004

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