Deactivated capillary columns for use in capillary electrophoresis
CA 2059008 A1 · Owner: S.A.C. Corporation · Inventors: Woolley, Cole L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PATENT APPLICATION, of, COLE L. WOOLLEY for, DEACTIVATED CAPILLARY COLUMNS FOR USE IN CAPILLARY ELECTROPHORESIS, Docket 90-107, JET/iav ABSTRACT OF THE INVENTION, The wails of fused-silica capillary columns used for capillary zone electrophoresis and micellar electrokinetic capillary chromatography may be deactivated with polysiloxanes, polysilazanes and other silicone polymers to permit more effective separations without eliminating electro-osmotic flow within the columns. i
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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 January 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2014.
- 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.