Nasal devices comprising a mouthpiece unit through which a subject exhales and a nosepiece including an inflatable cuff member
CA 2714072 C · Owner: Djupesland, Per Gisle · Inventors: Djupesland, Per Gisle
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nasal delivery device for delivering substance to a nasal airway of a subject comprising: a nosepiece for fitting to a nostril of a subject the nosepiece including a nozzle through which substance is in use delivered to the nasal airway and at least one inflatable cuff member which is configured to be inflated subsequent to exhalation by the subject and/or when inflated, to provide a fluid-tight seal between the nosepiece and an inner wall of the nasal cavity of the subject; a delivery unit for delivering substance through the nozzle of the nosepiece: and a mouthpiece unit through which the subject in use exhales to cause closure of the oropharyngeal velum of the subject.
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 June 12, 2002 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2024.
- 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.