Rotatable inverter
CA 2257770 C · Owner: Jang, Seong-Deog · Inventors: Sung, Han-Jun; Han, Yong-Woon; Kim, Chul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a rotatable inverter. The rotatable inverter comprises a rotatable, inverting means for inverting a DC power source to an AC power source by means of a, rotational force, and a transformer which receives the AC power source inverted by the, rotatable inverting means and outputs a higher voltage. The rotatable inverting means, comprises a motor generating the rotational force a commutator driven by the , motor and a plurality of brushes which are respectively contacted with the outer surface of the, commutator. The commutator comprises a cylindrical body made of an insulating material, and conductive parts which are divided into an even-number by non-conductive parts, …
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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 7, 1999 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 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.