An improved power supply regulator
CA 2183383 C · Owner: Sato, Masaji · Inventors: Elhatem, Abdul M.; Mojarradi, Mohammad M.; Sato, Masaji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved optically controlled power supply regulator in which an optoisolator transistor is controlled by an input light emitting diode replaces an, optically controlled power supply regulator with a light emitting diode controlled, with a light dependent resistor. The optically controlled power supply regulator, utilizes a capacitor and a resistor to reduce loop response oscillation in order to, prevent the optically controlled power supply regulator from being shut down on a, system board.
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 August 15, 1996 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 15, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2018.
- 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.