Networked air measurement system
CA 2286786 C · Owner: Phoenix Controls Corporation · Inventors: Sharp, Gordon P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A network air measurement system includes a sensor capable to measuring a characteristic of an air sample, the sensor having an air inlet port; a backbone tube in communication with the air inlet port of the sensor; a plurality of air intake valves in communication with the backbone tube air , admitted through one of the plurality of air intake valves communicated into the backbone tube; an air flow induction device in communication with air in the system, air moved by the air flow induction device from the plurality of air intake valves through the backbone tube to the sensor; and a controller , connected to the sensor and to each air intake valve the controller executing , a control …
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 15, 1998 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 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.
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.