Diverter valves with integral back flow preventer and inlet and outlet check valve mechanisms and improvements therefor
CA 2230938 C · Owner: Breda, Silvano · Inventors: Breda, Silvano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cartridge for a valve housing having outlets the cartridge, comprising a stationary body sleeve for fixed insertion within the housing and having outlet ports permanently aligned with the outlets of the housing a, moveable substantially hollow stem sleeve inserted within the stationary body sleeve and having an opening selectively alignable with the ports of the stationary body sleeve, the body sleeve and hollow stem being connected to one another by a retaining ring which aligns and maintains the cartridge as a unit in the housing. The diverting valve may be installed as a deck mounted fixture in atub whirlpool, soaking bath, spa, roman tub or the like wherein the tub spout is, located …
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 February 26, 1998 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.