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Expired Canadian patentCanada

Coated tubular filled welding electrode

CA 1047124 A · Owner: Cabot Corporation · Inventors: Cole, James A.

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

This invention relates to improved coated tubular hard-surfacing electrodes containing a particulated filler material and methods for manufacturing same. In the manufacture of electrodes of this invention the ends of, electrodes are reduced in cross section to frictionally engage said filler material; then the ends are sealed by dip coating in a liquid or slurry, similar to the flux coating composition. The resultant coating fills the interstices of the filler material. Thus costly welding of the ends to seal them is avoided.

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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 January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
  • 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—
GrantedJanuary 23, 1979
Term endedJanuary 23, 1996
Patent numberCA 1047124 A
Classification (IPC)B23K11/30 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 23, 1979Term endedJan 23, 1996

Sources & verification

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