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Expired Canadian patentCanada

Machining reforming apparatus for electrode of resistance welding machine

CA 1209458 A · Owner: Honda Giken Kogyo Kabushiki Kaisha · Inventors: Matsumoto, Isao; Abe, Kaoru; Fuse, Genzo

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

The invention provides a machining-reforming apparatus for an electrode of a resistance welding machine comprising an, electrode insertion portion provided with at least one rotary cutter having at least one cutter portion formed to extend along an inclination of a peripheral surface of a front end portion of an electrode and at a central position of rotation of the rotary cutter, said electrode insert position being produced with a receiving base having no cutter portion that is to be in abutment with a front end surface of the electrode.

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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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 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.
FiledDecember 22, 1983
GrantedAugust 12, 1986
Term endedAugust 12, 2003
Patent numberCA 1209458 A
Classification (IPC)B26D3/16 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedDec 22, 1983Patent grantedAug 12, 1986Term endedAug 12, 2003

Sources & verification

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