Laryngeal mask assemblies
CA 2363893 A1 · Owner: Collins, Michael Norman · Inventors: Collins, Michael Norman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Conventional laryngeal masks have a tube with a mount at one end and a sealing cuff, attached to the mount which seals to tissue in the region of the hypopharynx. In the present, invention the tube and mount are integrally molded from polyurethane as a single piece. A, sealing cuff is attached to the mount separately. An inflation line extends in a groove along, the outside of the tube and opens at one end into the cuff so that it can be inflated and, deflated.
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 November 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2023.
- 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.