Aerator for industrial and domestic waste waters
CA 1330461 C · Owner: Outokumpu Oy · Inventors: Kivisto, Tuomo Veikko Juhani; Koho, Tauno Tapio; Andersson, Arvo Einari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus is disclosed for aerating domestic and industrial wastewaters by means of an aerator placed on the bottom of an oxidation pond. The aerating apparatus includes a novel stator comprising a stator shell structure, stator ducts directed outwardly with respect to the outer edge of the shell structure legs, attached to the shell and extending to the bottom of the pond, and triangular blade members fastened to the legs.
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
- Granted June 28, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 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.