Patent Yard Sign in
Expired Canadian patentCanada

Apparatus for shaping anodes

CA 1072728 A · Owner: Sumitomo Metal Mining Company Limited · Inventors: Yoshida, Kimio; Itado, Tadashi; Kurokawa, Hirofumi

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Title of the Invention:, An apparatus for shaping anodes Abstract of the Disclosure:, An apparatus for shaping anodes for electrolytic refining in the form of flat plates having support ears extending outwardly of a top edge and opposite side edges thereof, the apparatus including a receptacle for holding the plates parallel, vertical and spaces apart vertically, movable beams engaging the ears for supporting the plates shaping devices movable toward and away from opposing sides of the receptacle for shaping the undersurfaces of the support ears, and a device movable vertically and horizontally for transferring the plates into the receptacle for being shaped and for transferring the shaped …

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

  • Granted March 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 4, 1980
Term endedMarch 4, 1997
Patent numberCA 1072728 A
Classification (IPC)H05K13/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 4, 1980Term endedMarch 4, 1997

Sources & verification

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