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Expired Canadian patentCanada

Metal finishing barrel apparatus

CA 1196182 A · Owner: Harshaw Chemical Company (The) · Inventors: Little, Frank

CIPO record

Overview

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

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Abstract From the Canadian patent

Metal Finishing Barrel Apparatus, Abstract A barrel loading and unloading station that includes a barrel support stand for supporting a plating barrel in predetermined positions and a door handling apparatus for releasing and separating a barrel access door from the plating barrel. The door handling apparatus includes a door assembly mounted for reciprocating motion towards and away from the plating barrel by a pair of trackways that are mounted to an elevator mechanism that is operative to raise and lower the trackways to increase accessibility to the barrel after the access door has been removed. One embodiment of the door handling assembly includes a pair of rotatable spindles operative …

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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 November 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 5, 1982
GrantedNovember 5, 1985
Term endedNovember 5, 2002
Patent numberCA 1196182 A
Classification (IPC)B65G49/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedFeb 5, 1982Patent grantedNov 5, 1985Term endedNov 5, 2002

Sources & verification

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