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Expired Canadian patentCanada

Electroplating apparatus

CA 1093012 A · Owner: Niemi, Uuno M. · Inventors: Korpi, Teuvo T.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Electroplating apparatus for applying a protective metallic coating on the surface of an object has chamber means which includes a process chamber containing at least a part of the liquid electrolyte solution and in which the object to be seated is submerged. Atmospheric air is prevented from flowing through the process chamber, and a pneumatic pressure-reducing pump is connected to the chamber means to maintain a reduced pressure, which is substantially below atmospheric above the, electrolyte solution within at least a part of the chamber means.

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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 January 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 1976
GrantedJanuary 6, 1981
Term endedJanuary 6, 1998
Patent numberCA 1093012 A
Classification (IPC)C25D17/00 +2 more

Timeline

Timeline From CIPO dates

19771980198319861989199219951998Application filedMay 6, 1976Patent grantedJan 6, 1981Term endedJan 6, 1998

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.