Battery charger
CA 2196379 C · Owner: Morita, Hideyo · Inventors: Morita, Hideyo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The battery charger of the present invention is provided with a printed circuit board in a case. A transformer the, primary side components, the secondary side components are fixed in the printed circuit board. The transformer insulates the surface by the insulating case. In the printed circuit board, using the transformer as border the primary side, components are set on one side and the secondary side components are set on the other side. The transformer isolates the primary side components and the secondary side components.
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 30, 1997 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2019.
- 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.