A probe for medical use
CA 2535900 C · Owner: Gonzaga Granja Filho, Luiz · Inventors: Gonzaga Granja Filho, Luiz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A probe for medical use comprising a tube and a cuff located around the tube in a region of its external wall, the cuff being inflatable through a conduit arranged at , the wall of the tube, linking the interior of the tube to the interior of the cuff, the , inflation and deflation of the cuff being determined by the rhythms of the inspiration , and expiration of air, respectively.
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 July 28, 2003 and granted June 4, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 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.