Fluid testing and analysing device and method
CA 2219640 C · Owner: Dubus, Yves, Francois, Pierre · Inventors: Dubus, Yves, Francois, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid testing and analysing device and a method therefor are described. The device includes, from its base up and in its upstanding configuration a tube-, holder (A) for receiving at least one partially or totally transparent tube (1) so that one wall or part of a wall thereof is visible; one or more tubes (1) forming a closed testing and observation chamber; closure means (4) for each tube, with a needle (3) extending therethrough and a flange (5) surrounding the needle, of smaller diameter than the closure means; a substantially vertical raised portion forming peripheral and/or internal walls surrounding the needles (3) and advantageously higher than the distance by which 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 May 23, 1996 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2018.
- 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.