Method and device for the electrolytic treatment of electrically conducting surfaces separated plates and film material pieces in addition to uses of said method
CA 2384249 A1 · Owner: Atotech Deutschland Gmbh · Inventors: Hubel, Egon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the electrolytic treatment of conducting plates and films LP wherein a method and a device are used in which plates and films are transported by a treatment unit and thereby brought into contact with a treatment liquid (3). The plates and the films are transported past at least one electrode arrangement consisting of cathode poled electrodes (6) and anode poled electrodes (7). Said cathode and anode poled electrodes are brought into contact with said treatment liquid. Said cathode poled electrodes and anode electrodes are connected to an electrical source/voltage source (8) in such a way that electricity flows through said electrodes and electrically …
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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 October 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2022.
- 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
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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.