Apparatus for coupling power into a body of gas
CA 2332860 A1 · Owner: Green, Ian Macdonald · Inventors: Green, Ian Macdonald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for coupling power into a body of gas by induction to provide a gas discharge, comprises a source of a/c power (3) coupled to a circuit arrangement having an inductor comprising two coils (1 2), each constituted , by a respective elongate conductor the conductors each having one end coupled to the circuit arrangement at opposite respective sides of the inductor and , having the other end at a floating potential. The mutual capacitance between the coils, together with the inductance of the inductor as a whole constitute , a balanced self-resonant circuit having a resonant frequency which is greater than 1 MHz and less than 100 MHz. This arrangement can reduce temperature …
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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 May 19, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.