Humidifying device for inhalation gases
CA 1269923 C · Owner: Kendall Company (The) · Inventors: Wiencek, Virginia Geriann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A humidifying device comprising an annular cylinder, and a heating device for heating an outer surface of the cylinder. The humidifying device has an annular absorptive column disposed against an inner surface of the cylinder with the, column having a plurality of apertures extending therethrough. The humidifying device has a reservoir containing a sterile liquid, and a conduit connecting the reservoir with the cylinder.
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
- Granted June 5, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 2007.
- 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.