Expired Canadian patentCanada
Regeneration of chromatographic stationary phases
CA 2521188 C · Owner: Rasmussen, Eigil Schroeder · Inventors: Rasmussen, Eigil Schroeder; Schou, Ole; Larsen, Per
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 is related to an improved process for regenerating a chromatographic , stationary phase and use of said process.
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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 2, 2004 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2026.
- 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 2, 2004
GrantedJune 26, 2012
Term endedApril 2, 2024
Patent numberCA 2521188 C
Classification (IPC)B01D15/08
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.