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Expired Canadian patentCanada

Arc welding electrode

CA 1261007 A · Owner: Weld Mold Company · Inventors: Kiilunen, Matt

CIPO record

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

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Abstract From the Canadian patent

A cluster welding electrode assembly is provided which permits the deposition of maximum weights of weld metal with minimum amperage and voltage values. The assembly is comprised of a central rod electrode having circumferentially grouped or nested thereabout in longitudinally aligned relationship a plurality of lesser diameter rod electrodes. Each of the rods in the assembly carries thereon a novel flux coating productive during the welding operation of a nickel-chromium-molybdenum type alloy characterized as dense, porous-free and homogenous. Various means are disclosed for integrating the central rod electrode and surrounding lesser diameter rod electrodes into a unitary welding assembly.

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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 27, 1986
GrantedSeptember 26, 1989
Term endedSeptember 26, 2006
Patent numberCA 1261007 A
Classification (IPC)B23K35/08 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedNov 27, 1986Patent grantedSep 26, 1989Term endedSep 26, 2006

Sources & verification

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