Electroplating apparatus particularly for electro-deposition of aluminum
CA 1297836 C · Owner: Birkle, Siegfried · Inventors: Gehring, Johann; Birkle, Siegfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electroplating apparatus having electroplating tank which is closable air-tight and charged with an inert gas above the electrolyte and also includes one vacuum lock for charging and discharging goods to be electroplated. The lock chamber of the vacuum lock is equipped with an inner lock door and an outer lock door and is preferably evacuated with the assistance of a vacuum pump so that solvent vapors can be condensed during evacuation in a condensor. The apparatus increases the useful life of the electrolyte, particularly an aprotic aluminum-, organic electrolyte which is used in aluminum plating in comparison to previously known locks which use gas and liquid locks.
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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
- Granted March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- 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.