Electronic control circuit
CA 2334591 A1 · Owner: Innoware Oy · Inventors: Pienisaari, Heikki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic control circuit for adjusting the control voltage of a device to be controlled, the control circuit comprising a primary coil (N1) a control , bus (1) comprising means (Z1) for adjusting the control voltage parallel-, connected with the first capacitor (C1) the parallelling being further seriesconnected with the first secondary coil (N2) and a first control diode (D1) and a control voltage supply circuit (2) comprising a series-connected second secondary coil (N3), a second control diode (D2) and a second capacitor (C2). The primary coil (N1) is connected between a first node and a second node of the device to be controlled, and the nodes in the connection are selected …
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 June 10, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 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.