Sucrose detection by enzyme-linked immunosorbant assay
CA 2307906 A1 · Owner: Borgford, Thor Jon · Inventors: Borgford, Thor Jon; Racher, Kathleen Iris; Braun, Curtis Archie John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is described for the rapid, sensitive and accurate determination of sucrose in biological fluids. A subtstrate is pre-coated with a glucose or fructose polymer (dextran, amylose, levan) and a transglycosidase enzyme (dextransucrase, amylosucrase, levansucrase). When the coated substrate is incubated with biological fluids containing concentrations of sucrose the , transglycosidase enzyme transfers monomers of glucose or fructose from the sucrose to the glucose or fructose polymer. The dimensions of the polymer are increased in proportion to the sucrose concentration of the samples. Newly formed polymer is subsequently quantitated in an immunoassay which employs either a …
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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 November 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2020.
- 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.