Timed power saving device
CA 2072825 A1 · Owner: Neto, Antonio Rodrigues · Inventors: Rodrigues, Renato; Neto, Antonio Rodrigues; Sobrinho, Horacio Rodrigues
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device for decreasing electrical power consumption in inductive or resistive loads and particularly for decreasing electrical power consumption in public lighting systems. Based on the elimination of the sinusoidal half-wave and on the continuity through the action of a fixed or variable resistor, the saver overcomes the disadvantages of present devices, may be used in any type of lamp or resistive or inductive load, has programmable timing extends, the lamps, its cost is low, saves power and its size is small.
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 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 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.