Power transformer with internal differential mode distortion cancellation
CA 2283359 A1 · Owner: Ir. Buro Vanderveen · Inventors: Van Der Veen, Menno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power transformer with internal differential mode distortion cancellation comprising a primary coil for connection to a power source providing a fundamental, frequency power signal, a secondary coil for connection to an electrical load a, magnetic core intermediate the primary coil and secondary coil for providing mutual, magnetic couplings of signals therebetween a further coil connected with , opposite phase to one of either the primary coil and the secondary coil and a high-, pass filter, connected in series with the further coil for attenuating said fundamental frequency, power signal while passing high frequency distortion signals substantially unattenuated, whereby the high …
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 September 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 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.