Electrical distribution system having controller responsive to multiple command paths
CA 2089561 C · Owner: Bilas, Ronald John · Inventors: Reid, Drew Austin; Bilas, Ronald John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For use within an electrical distribution system a circuit, arrangement is provided which includes a multitude of circuit breakers (20), each of which is operable by remote control in at least open and closed circuit positions. A circuit breaker control circuit is included and has a termination circuit (30) which interprets circuit breaker control signals from an external switch device, a circuit breaker drive board (34) which controls and, monitors the multitude of circuit breakers (20) input means and, a data path for receiving manual input instructions a data port, and a data path for receiving programming data from an external device, and a switch input data path coupled to the termi-, …
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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 29, 1992 and granted January 21, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2014.
- 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.