Flowmeter
CA 2351699 A1 · Owner: Saar, David A. · Inventors: Saar, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flowmeter having a rotatable flow indicating device including at least one target and a computer controlled meter. The meter has a control including a sensor for sensing the at least one target when flow displaces the at least one target past the sensor. The sensor is periodically turned on until the sensor senses a target. The sensor then remains on and a timer, having a set time duration, is turned on. The control has a volume counter. When the sensor senses the next target during the operation of the timer, the timer is restarted and the counter is updated by a selected volume. The timer is turned on when the timer means times out.
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 June 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2023.
- 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.