Assisted ventilation apparatus
CA 2001453 C · Owner: Labrune, Jean-Claude · Inventors: Boussignac, Georges; Labrune, Jean-Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns an assisted ventilation apparatus including an assisted ventilation tube (2) the distal end (3) of which, designed to be introduced into a patient's trachea (4) is equipped with an inflatable bag (5) and means (6,11) of bringing breathing mixture into the patient's lungs via the said tube (2). According to the invention the apparatus has early means (16) of detecting variations in pressure within the said bag (5). The invention applies to assisted ventilation. Figure 1.
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 October 25, 1989 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2011.
- 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.