Canadian application, no grantCanada
Procatalysts, catalyst systems, and use in olefin polymerization
CA 2396737 A1 · Owner: Eastman Chemical Company · Inventors: Williams, Darryl Stephen; Ford, Randal Ray
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are described solid procatalysts catalyst systems incorporating the , solid procatalysts and the use of the catalyst systems in olefin polymerization and interpolymerization.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 11, 2001
GrantedNo grant recorded
Term endedJanuary 11, 2021
Patent numberCA 2396737 A1
Classification (IPC)C08F10/00 +2 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.