Diverting valve for mixing faucet
CA 2314641 C · Owner: Chung Cheng Faucet Co. Ltd. · Inventors: Ko, Hsi-Chia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved diverting valve has a valve body a valve control stem, an upper, control valve unit and a lower control valve unit a seal cap and a locking , cap. The valve body and the valve control stem are integrally formed of plastics. The lower control valve, unit is provided with oil reservoir cavities and oil grooves so as to permit the upper, control valve unit and the lower control valve unit to be lubricantly engaged with each, other. The flexible seal cap has tapered flange and a concentrically-ribbed bottom surface, so that it can be better sealed in operation. The assembly of the diverting valve is simple, and speedy and the operation thereof is smooth and durable.
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 July 28, 2000 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2022.
- 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.