Tracheal ventilation device
CA 2525573 C · Owner: Gobel, Fred · Inventors: Gobel, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Tracheal ventilation device, in particular tracheal tube which seals the , trachea in as air-tight a manner as possible. Said device comprises a cuff that blocks the trachea below the glottis and is traversed by a ventilation cannula. The cuff is larger in its filled freely displaceable, unrestricted , state than in its filled state positioned in the trachea. The cuff consists of a flexible soft film material and lies against the trachea by means of its folds. The device (1) is adapted to the morphology of a child's larynx and is available in finely graded sizes.
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 May 6, 2004 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 6, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2026.
- 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.