Flow control device
CA 2546239 C · Owner: Kimura, Motoyasu · Inventors: Kimura, Tomoei; Kimura, Motoyasu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object of the invention is to provide a flow control device having a power saving effect in addition to a water saving effect. Further another object is , to provide a flow control device easy to install maintain and manage. The , flow control device of the invention comprises a flush valve device (1) having a main control valve (70) in a path leading from an inlet (13) to an outlet (16), a flowmeter unit (81) for converting the presence or absence of flow of washing water leading from the inlet (13) to the outlet (16) into a pulse signal and outputting the latter, a control device (100) for controlling the opening and closing of the main control valve (70) according to the output …
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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 April 26, 2004 and granted February 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2026.
- 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.