Expired Canadian patentCanada
Engineering ionomer blends and engineering ionomer blend membranes
CA 2324963 C · Owner: Kerres, Jochen · Inventors: Kerres, Jochen; Ullrich, Andreas; Haring, Thomas
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel compatible binary and ternary cation-exchanger polymer and anion-exchanger polymer blend membranes.
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 April 16, 1999 and granted June 21, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 16, 1999
GrantedJune 21, 2016
Term endedApril 16, 2019
Patent numberCA 2324963 C
Classification (IPC)C08J3/20 +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.