Flotation machine
CA 2431438 C · Owner: Taylor, David · Inventors: Taylor, David; Bourke, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flotation machine having: a flotation cell having a slurry feeder in the flotation cell, an , air feeder for feeding air into the slurry to produce froth a froth remover , for removing , froth from the flotation cell tailings remover for removing tailings from the flotation cell, at least eight evenly spaced radially oriented stabilizing members for preventing froth , collapse during movement of the froth removal device; and at least one rotating froth , removal device, capable of being at least partly immersed in the froth and , having a , portion that extends over a launder capable of carrying froth into the , launder the froth , removal device being attached to the flotation cell …
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 December 11, 2001 and granted April 26, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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.