Test strip measuring method and device
CA 2397525 C · Owner: Inoue, Tomokuni · Inventors: Ninomiya, Masao; Ikegami, Eiji; Inoue, Tomokuni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a test strip measuring method in which a coloration measurement is conducted while a test strip (4) is being moved there are detected the , optical characteristics R of the ground of a test strip and the optical characteristics T of a test line (4b) which has appeared on the test strip and the test strip is judged based on the difference or ratio between R and T. Even though the ground of the test strip presents variations in optical characteristics, and even though there are variations among samples or among test strips, such variations can be absorbed thus assuring an accurate , judgment.
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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 January 30, 2001 and granted April 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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.