Miniaturized ac/dc power supply and battery charger
CA 2372598 A1 · Owner: Perlick, John A. · Inventors: Perlick, John A.; Box, Gary W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transformer (T1) connected to a power source (AC) which consists of a , primary coil (16 and 18) a secondary coil and a magnetic core, the secondary coil being configured to provide a regulated DC output (12) voltage and/or current. The primary coil contains two portions one portion being used to , operate the transformer as a low voltage input (16) converter and both portion being used when the transformer is used as a high voltage input (18) converter.
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 April 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 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.