Flotation cell line
CA 2353887 A1 · Owner: Outokumpu Oyj · Inventors: Tarvainen, Matti; Niitti, Timo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a flotation cell line wherein there are installed, in order to treat the flotatable material several flotation cells so that the , flotatable material can be set to flow through the flotation cell line. According to the invention, the flotation cells (1 2, 3, 4, 5; 31, 32, 33, 34, 35) that are arranged successively in the flowing direction (22 52) of , the flotatable material, are at least partly installed in parallel with respect to each other.
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 September 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 2021.
- 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.