Oxygen rich air inhaler
CA 2014897 C · Owner: Ito, Seiichi · Inventors: Ohno, Kiyoshi; Itoh, Nobuyoshi; Kawai, Masato
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oxygen rich air inhaler for use in stress relief and fatigue recovery has a casing, an inlet duct and an exhaust duct. The casing is separated into a compressor chamber and an adsorber chamber by a partition. The inlet duct has an inlet open to an end wall on the side of the adsorber chamber and provided at an upper portion of the adsorber chamber so as to communicate with the compressor chamber. The exhaust duct has an exhaust outlet open to an end wall on the side of the adsorber chamber and provided at a lower portion of the adsorber chamber so as to communicate with the compressor chamber. A suction fan and at least one compressor are disposed in the compressor chamber. At least two …
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 April 19, 1990 and granted January 9, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2012.
- 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.