Solid-state transducer based dynamic fluid sensing system
CA 2064590 A1 · Owner: Richardson, Thomas W. · Inventors: Richardson, Thomas W.; Malcolm, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dynamic fluid flow sensing system measures relative fluid velocity with respect to a reference member. The system includes a sensor housing (10) supported from the reference member such that the sensor housing is exposed to fluid flowing past the reference member. A solid-state pressure sensing transducer (30) is supported by the sensor housing for generating an electronic output signal in proportion to a sensed dynamic pressure of fluid flowing past the reference member. A central processing unit (40) receives the electronic output signal from the transducer and generates a processed electronic output signal in accordance with a stored control program. A display (48) receives the …
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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 August 1, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 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.