Nitric oxide delivery system
CA 2133516 C · Owner: Bathe, Duncan P. L. · Inventors: Tham, Robert Q.; Kohlmann, Thomas S.; Bathe, Duncan P. L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nitric oxide delivery system that is useable with any of a variety of gas delivery, systems that provide breathing gas to a patient. The system detects the flow of gas, delivered from the gas delivery system at various times and calculates the flow of a, stream of nitric oxide in a diluent gas from a gas control valve. The flow of gas from the, gas delivery system and the flow established from the flow control valve create a mixture, having the desired concentration of nitric oxide for the patient. The system does not have to interrogate the particular gas delivery system being, used but is an independent system that can be used with various flows flow , profiles and, the like from …
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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 October 3, 1994 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2016.
- 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.