Support for an electrical box
CA 2028652 C · Owner: Sigma-Aldrich Company · Inventors: Rinderer, Eric R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A support for an electrical box, comprising a bar to be mounted between two spaced-apart wall studs or the like. The bar comprises an elongate web of sheet metal forming a front face of the bar and having side edges extending lengthwise of the bar, a pair of flanges extending rearwardly from the side edges of the web and a, forwardly-opening, generally U-shaped channel formed in the web running substantially the full length of the web between the side edges of the web. The channel has spaced apart side walls extending rearwardly from the front face of the web, a bottom wall connecting the side walls and forming the bottom of the channel, and pilot holes spaced …
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 October 26, 1990 and granted September 14, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2012.
- 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.