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Expired Canadian patentCanada

Extendable electrocautery surgery apparatus and method

CA 1296962 C · Owner: Kast, Michael A. · Inventors: Kloeckl, Terrance L.; Watkins, Frank T. Iii; Weber, Jaroy Jr.

CIPO record

Overview

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

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Abstract From the Canadian patent

An improved electrocautery method and instrument is configured to accept attachable extension units for effectively extending the utility of the instrument into deep surgical sites. Interlock features enable the instrument to be safely configured to any desired length for use as a vacuum probe and as a self-cleanable electrocautery or electro-surgical instrument under convenient manual controls including a slide element and control buttons and interlock switch positioned on the instrument.

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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
  • 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 29, 1988
GrantedMarch 10, 1992
Term endedMarch 10, 2009
Patent numberCA 1296962 C
Classification (IPC)A61M1/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedNov 29, 1988Patent grantedMarch 10, 1992Term endedMarch 10, 2009

Sources & verification

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