Method for ph-biased isoelectric trapping separations
CA 2488380 A1 · Owner: Vigh, Gyula · Inventors: Vigh, Gyula
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for separating an ampholytic component by electrophoresis the method , involving placing a sample containing an ampholytic component having a pl value in an electrophoresis separation system comprising an anolyte having a pH and a catholyte having a pH, the catholyte pH being higher than the anolyte pH, one or more ion-permeable barriers disposed between the anolyte and catholyte wherein at least one of the barriers is an isoelectric barrier having a pl value which is higher than the anolyte pH and lower than the catholyte pH; providing an isoelectric buffer having a pl value higher than the pH of the anolyte and lower than the pH of the catholyte and different from the pl …
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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 June 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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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.