Respirating apparatus for patients
CA 1281608 C · Owner: Westerkamp, Bart · Inventors: Westerkamp, Bart; Van Dijk, Geert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t, Respirating apparatus comprising a pump by means of which, respiratory gas may be circulated in a closed line system in which the pressure may be varied in accordance with a certain respirating pattern, said line system being provided with connecting means for a patient and for supplying the various components of the respiratory gas and with means for withdrawing the carbon dioxyde exhaled by the patient into the line system, said pump including at least one pump chamber, which is separated by a pump membrane into a primary and a secundary portion, in which the secundary portion forms part of or is connected to the line system and the primary portion is connected to a …
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 March 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2008.
- 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.