Measurement of trivalent iron cation concentrations
CA 2406793 A1 · Owner: Wisdom, Norvell E. Jr. · Inventors: Almutawalli, Salman S.; Faw, Lawrence E.; Wisdom, Norvell E. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for eliminating the interference of peroxide in an analysis of the concentration of iron (III) with which the presence of peroxide interferes. The process has the following steps: (I) providing an aqueous liquid analyte that contains both dissolved iron (III) and dissolved peroxide the , concentration of peroxide in the aqueous liquid analyte being sufficient to interfere with the determination of iron (III); (II) bringing the analyte into contact with an electrode; (III) causing electrical current to flow; and (IV) continuing the current flow until the concentration of peroxide in the analyte has been reduced to a sufficiently low value that it no longer interferes with …
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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 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.