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Expired Canadian patentCanada

Vessel sealer and divider

CA 2443298 C · Owner: Johnson Kristin D. · Inventors: Couture, Gary M.; Schechter, David; James, Jeremy Scott

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

An electrosurgical instrument for performing at least one of sealing and dividing tissue includes a housing having a shaft attached thereto the shaft , defining a longitudinal axis. The electrosurgical instrument also includes a first jaw member movable relative to a second jaw member the first jaw member , attached to the shaft and being relatively movable from a first open position wherein the jaw members are disposed in spaces relation relative to one another to a second closed position wherein the jaw members cooperate to grasp tissue therebetween. The instrument also includes a drive rod assembly for imparting movement of the jaw members between the first and second positions …

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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 January 22, 2002 and granted October 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 22, 2002
GrantedOctober 4, 2011
Term endedJanuary 22, 2022
Patent numberCA 2443298 C
Classification (IPC)A61B18/14 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJan 22, 2002Patent grantedOct 4, 2011Term endedJan 22, 2022

Sources & verification

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