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Expired European patentEurope

Catalyst systems for polymerising c 2 to c 10 alkenes

EP 0625995 B1 · Applicant: BASF Aktiengesellschaft

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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 January 30, 1993 and granted September 18, 1996. A European patent lasts at most 20 years from filing, so its term ended January 30, 2013.
  • 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 July 30, 2018.
  • 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.
FiledJanuary 30, 1993
PublishedNovember 30, 1994
GrantedSeptember 18, 1996
Term endedJanuary 30, 2013
Application numberEP 93917357
Classification (CPC)C08F10/00 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedJan 30, 1993PublishedNov 30, 1994Patent grantedSep 18, 1996Term endedJan 30, 2013

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