Breathable gas apparatus with humidifier
CA 3045674 C · Owner: Resmed Pty Ltd · Inventors: Primrose, Rohan Neil; Kenyon, Barton John; Trevor-Wilson, Duncan Lovel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flow generator and humidifier construction is described including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The humidifier has a water container which is adapted for drop in assembly in the humidifier base so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid.
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 21, 2004 and granted March 22, 2022. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.