Composition and method of assaying for trace amounts of proteins
CA 1333251 C · Owner: Lau, Arthur L. Y. · Inventors: Lau, Arthur L. Y.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new and improved method and composition for determining the presence and concentration of low to trace amounts of proteins such, as albumin, in a test sample, such as urine. The method includes using a reagent composition capable of interacting with low to trace amounts of proteins to produce a visually or instrumentally detectable and/or measurable response. The method can be used in wet assays or in dry test strip assays, wherein the reagent composition is incorporating into a carrier matrix. The new and improved reagent composition, comprising a dye, such as a polyhydroxybenzenesulfonephthaleintype indicator, like pyrocatechol violet; a tungstate, such as ammonium tungstate; and if …
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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
- Granted November 29, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 29, 2011.
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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.