Cartridge for a single control lever mixing faucet with connecting pipes reinforced by elastic means
CA 2000380 C · Owner: Masco Corporation · Inventors: Knapp, Alfons
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cartridge for a mixing faucet having a control lever (30) mounted to a pivot ball (27) in which the compressive sealing force between the water conduits of the cartridge (9) and the corresponding water conduits of the body (1) of the faucet is provided by tubes (33) made from resilient material forming the seal and being positioned in counterbores (14, 15) of passages (11 12), of water through the base (10) of the cartridge and opens, toward the external surface of the cartridge base. The tubes (33) protrude from the counterbores of the cartridge to abut against the end (3) of cavity (2) in faucet body (1). The counterbore (14, 15) also mounted a spring means (36) to provide the …
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 October 10, 1989 and granted May 12, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2011.
- 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.