Suppression of electroendosmosis in capillary electrophoresis
CA 2074472 A1 · Owner: Rodriguez, Roberto · Inventors: Zhu, Ming-De; Rodriguez, Roberto; Wehr, C. Timothy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Spontaneous and undesired electroendosmosis in a capillary during an electrophoretic separation procedure is suppressed by the inclusion of a viscosity-raising additive in one or both of the electrode chamber solutions. The additive is either a viscous water-soluble polymer a hydrophilic gel, or a combination of the two.
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 December 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2013.
- 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
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.