Fecal occult blood test reagents and methods
CA 1322323 C · Owner: Litmus Concepts, Inc. · Inventors: Lawrence, Paul J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An improved method for detecting peroxidatively active materials in a sample is provided the method incorporating antimalarial drugs such as quinine, quinidine, chloroquine, primaquine and, quinacrine as modulating compounds. In a preferred embodiment, the method is a fecal occult blood test (FOBT), in which a fecal specimen is contacted with chromogen and a hydroperoxide in the presence of a selected quinoline derivative. The method enables careful modulation of test sensitivity and specificity and further provides an FOBT in which interference from dietary meat ingestion is substantially eliminated.
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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 September 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 21, 2010.
- 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.