Canadian application, no grantCanada
Combined vacuum pump especially for respiratory diagnostics
CA 2232801 A1 · Owner: Ireland, Robert · Inventors: Ireland, Robert
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ejector pump with a radial diffuser is combined with an integral fast-acting valve which opens into the diffuser. The pump-valve assembly is useful in medical diagnostics for, example for detecting expiratory flow limitations in certain patients.
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 May 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1998
GrantedNo grant recorded
Term endedMay 26, 2018
Patent numberCA 2232801 A1
Classification (IPC)A61M16/00
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.