Self-calibrated flow-through assay devices
CA 2508285 A1 · Owner: Kaylor, Rosann · Inventors: Song, Xuedong; Kaylor, Rosann; Wei, Ning
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An internal, self-calibrated system for flow-through assay devices is provided. In particular, the present invention employs the use of a single calibration/detection zone defined by a porous membrane of the assay. It has been discovered that the internal, self-calibrated system provides an accurate, inexpensive, and readily controllable method of determining the presence of an analyte in a test sample.
Read the whole patent
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 October 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2025.
- 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.