Internal indifferent electrode device for use with lesion creation apparatus and method of forming lesions using the same
CA 2438806 C · Owner: Swanson, David K. · Inventors: Swanson, David K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An internal indifferent electrode device including a flexible shaft (12) a , plurality of energy receiving devices (14) thereon disposed (14) adapted to be inserted into the body supported on the shaft (12) and a connector (38, 40) , adapted to mate with the power return connector (32 34) of a power supply , apparatus (20).
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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 February 20, 2002 and granted May 3, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 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.
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.