An electrode assembly for an electrosurgical instrument
CA 2326526 A1 · Owner: Goddard, Robert William · Inventors: Bullivant, Jarrett; Goddard, Robert William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrode assembly, for the electrosurgical removal of tissue immersed in an electrically-conductive liquid, comprises an elongate support structure (12S) including at least a pair of conductors (12A 12B) for carrying radio , frequency electrosurgical currents. An electrically-insulative body (34) is mounted at a distal end of the support structure (12S) and extends , transversely with respect to the support structure. A transversely-extending conductive tissue treatment electrode (36) is secured to one side of the insulative body (34), and is electrically connected to one of the conductors. A transversely-extending, conductive return electrode (38) is secured to an opposite side …
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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 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.