Downhole induction heating tool for enhanced oil recovery
CA 2332228 A1 · Owner: Garnall, Stephen J. · Inventors: Wassel, Mark E.; Kahn, David Seemab; Stapleton, George T. Ii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The tool comprises one or more core-coil assemblies 2 jacketed in an nonmagnetic and electrically insulating, tubular outer housing 10. The housing, enables high power transfer efficiency. A structural skeleton 20 extends longitudinally through the tool for axially reinforcement. The core-coil assemblies, 2 are encapsulated in epoxy 77 to mechanically rigidify and protect them as well as, to isolate the coil windings 51 from the power bus 23 extending longitudinally of the, core-coil assemblies through a peripheral busway 60 61.
Read the whole patent
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 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2023.
- 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.