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Expired Canadian patentCanada

Mig welding torch reconditioning apparatus

CA 2037489 C · Owner: Simond, Alfred Robert · Inventors: Simond, Alfred Robert; Lee, John Randy

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 MIG welding torch reconditioning apparatus comprises a chuck adapted to receive such a torch in releasably clamped relation between ones of a plurality of selectively moveable cooperative jaws of respective clamps. The jaws are arranged in radially spaced relation around a central axis defining a longitudinal path of insertion for the torch. The clamps is movable to translationally reposition the jaws between: a clamping position in which said jaws are clampingly extended into interfering relation in said path; and a retracted, position wherein said jaws are positioned out of clamping relation and clear of said path. The apparatus further comprises torch reconditioning tooling arranged in …

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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

  • Filed March 4, 1991 and granted June 30, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 4, 1991
GrantedJune 30, 1998
Term endedMarch 4, 2011
Patent numberCA 2037489 C
Classification (IPC)B23K9/16 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 4, 1991Patent grantedJune 30, 1998Term endedMarch 4, 2011

Sources & verification

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