Cleaning system for electrolytic tanks
CA 2116205 C · Owner: Menendez, Francisco Javier Sitges · Inventors: Menendez, Fernando Sitges; Tamargo, Francisco Alvarez; Lefevre, Ives
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cleaning system for electrolytic tanks consisting of a cell with a preferably rectangular layout very long, relative to its width, and which is provided with at least one conduit with perforated walls and preferably, two, which run over the bottom of the cell along its, length, and ascend alongside the shorter walls until they reach, approximately, the level of liquid of the tank said cell being provided below with surfaces which are inclined towards the perforated conduits said conduits, having sufficient cross-sectional area to act as guides through which are inserted a suction head and pipe for sludge extraction.
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 22, 1994 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2016.
- 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.