Nasal and oral cannula supplying, sampling and/or detecting device
CA 2548145 C · Owner: Salter, Peter W. · Inventors: Curti, James N.; Salter, Peter W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nasal cannula comprising a hollow main body having opposed first and second ends with the main body defining an internal chamber therein. At least a first nasal prong communicating with the internal chamber of the main body and defining a first nasal prong passageway. A mouthpiece having a gas passageway and a retainer passageway, and a first end of the gas passageway communicating with the internal chamber of the main body while a second free end of the mouth piece having a gas passageway opening therein. An elongate malleable dead soft member being received within the retainer passageway for the facilitating retained adjustment of the mouthpiece. A method of forming the cannula …
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 December 3, 2004 and granted October 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 3, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.