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Expired Canadian patentCanada

Ballast having multiple circuit failure protection and method for ballast circuit protection

CA 2590703 C · Owner: Lutron Electronics Co. Inc. · Inventors: Veskovic, Dragan; Mosebrook, Donald R.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A ballast for a gas discharge lamp comprising a first circuit portion for providing power to a lighting load and a second circuit portion for processing data exchanged with a communication link the first circuit portion receiving , power from an AC main supply for conversion to a form suitable to supply power to the lamp, and the second circuit portion having a power supply supplied from the AC main supply, the power supply being coupled at the input of the AC main supply to the first circuit portion further comprising a first , protection circuit coupled in series with the AC main supply for protecting the first and second circuit portions in the event of an electrical circuit …

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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 December 8, 2005 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 8, 2005
GrantedMay 1, 2012
Term endedDecember 8, 2025
Patent numberCA 2590703 C
Classification (IPC)H05B41/28 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 8, 2005Patent grantedMay 1, 2012Term endedDec 8, 2025

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.