Differential immunoassay
CA 2420327 A1 · Owner: Shi, Qinwei · Inventors: Shi, Qinwei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides assay methods and kits that in general measure the level of a first analyte in a sample reduced by the level of a second analyte present in the same sample. In one embodiment where levels of a first analyte , from a first source is desirably determined and first analyte in the sample released from a second source is accompanied by proportional co-release of a second analyte, the assay identifies the level of first analyte released only from the first source. For analytes within bodily fluids the assay can , differentiate between elevated levels of analyte specific to the particular physiological or pathological state and elevated levels not specific to the …
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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 August 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 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.
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.