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Expired European patentEurope

Apparatus for preparative gel electrophoresis

EP 0366408 B1 · Applicant: Chen, Jin-Hai

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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.

Why it's free to use

  • Filed October 24, 1989 and granted March 20, 1996. A European patent lasts at most 20 years from filing, so its term ended October 24, 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 April 24, 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.
FiledOctober 24, 1989
PublishedMay 2, 1990
GrantedMarch 20, 1996
Term endedOctober 24, 2009
Application numberEP 89310941
Classification (CPC)B01D57/02 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedOct 24, 1989PublishedMay 2, 1990Patent grantedMarch 20, 1996Term endedOct 24, 2009

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