Apparatus and method for sequential determination of an analyte in a fluid sample
CA 2004878 C · Owner: Delacroix, Fern · Inventors: Buck, Harvey; Berger, Hans; Delacroix, Fern
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus comprises a first zone containing a first receptor which specifically binds to the analyte and a sample application point: a second zone containing a solid phase bound receptor which specifically binds to the first receptor but not the analyte the first and second zone being in at least partial fluid contact. There is a third zone containing a third receptor which specifically binds to the analyte and which carries a label. The third zone is separated from the first zone to prevent fluid contact therebetween. A fluid application device is in contact with at least the third zone. The method comprises sequentially contacting the sample with a first receptor which specifically …
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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 December 7, 1989 and granted March 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 2011.
- 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
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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.