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Expired Canadian patentCanada

Method of shearing metal billets

CA 1205000 A · Owner: Park-Ohio Industries, Inc. · Inventors: Balzer, Norbert R.

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

A method of hot-shearing an elongated metal bar into sections of given gauge length comprises longitudinally indexing the metal bar to position cross-sectional zones thereof where it is to be sheared successively at a plurality of heating stations at which the shear zones of the bar are progressively heated by resistance heating units to reduce the force required for subsequent shearing of the bar through the heated shear zones on ensuing index thereof to a shearing station.

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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 May 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 10, 1983
GrantedMay 27, 1986
Term endedMay 27, 2003
Patent numberCA 1205000 A
Classification (IPC)B26D3/16 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedAug 10, 1983Patent grantedMay 27, 1986Term endedMay 27, 2003

Sources & verification

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