Hollow frustum reagent test device
CA 2212475 A1 · Owner: Lifescan, Inc. · Inventors: Pugh, Jerry Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow, frustum-shaped disposable device is used in an apparatus for measuring the concentration of an analyte in a sample of a biological fluid. Thesmaller end of the frustum has a porous membrane to which a sample of the, fluid may be applied. Preferably a reagent in the membrane reacts with the analyte to cause a color change. The device is mounted on a meter which, measures the color change and computes from the change the analyte concentration in the sample. The apparatus permits remote dosing of the device, which minimizes the likelihood of cross-contamination between the user and the meter. Devices can be mounted on the meter and released from the meter without touching them, to …
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 August 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2019.
- 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.