Expired European patentEurope
Process for the preparation of a catalyst support, catalyst for olefin polymerization and process for the polymerization of olefins with said catalyst
EP 0700403 B1 · Applicant: SOLVAY (Société Anonyme)
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 May 10, 1994 and granted August 20, 1997. A European patent lasts at most 20 years from filing, so its term ended May 10, 2014.
- 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 November 10, 2019.
- 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.
FiledMay 10, 1994
PublishedMarch 13, 1996
GrantedAugust 20, 1997
Term endedMay 10, 2014
Application numberEP 94916948
Classification (CPC)B01J21/12 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.