Electrolytic recovery unit
CA 2046449 C · Owner: Maitino, Eugene J. · Inventors: Maitino, Eugene J.; Maitino, Phillip M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for recovering metals from waste metallic solutions includes a treatment tank and a hollow perforated cathode element rotatably mounted in the treatment tank for holding associated work pieces which are to be coated with the recovered waste metal. A fixed anode element extends in the treatment tank in spaced relation to the rotatable cathode element. A first solution inlet conduit extends into the rotatable cathode element. A second solution inlet conduit extends into the treatment tank in a spaced manner from the rotatably cathode element. A drain conduit leads away from the treatment tank.
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 July 8, 1991 and granted April 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2013.
- 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.