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Expired Canadian patentCanada

Electrical ceiling box for fixture support

CA 2545799 C · Owner: Johnson, Steven J. · Inventors: Johnson, Steven J.; Korcz, Krzysztof W.

CIPO record

Overview

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

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Abstract From the Canadian patent

An electrical box has a side wall with at least one mounting flange that is contained completely within the perimeter of the side wall. The flange is coupled to the side wall along a common non- linear edge to resist bending of the flange along the joining edge with the side wall. In one embodiment the electrical box has a substantially circular side wall with at least one recessed portion. The mounting flange is connected to the upper edge of the recessed portion and is positioned within a radius of the circular side wall.

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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 May 4, 2006 and granted January 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2026.
  • 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.
FiledMay 4, 2006
GrantedJanuary 15, 2013
Term endedMay 4, 2026
Patent numberCA 2545799 C
Classification (IPC)H02G3/08 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 4, 2006Patent grantedJan 15, 2013Term endedMay 4, 2026

Sources & verification

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