Dimmer rack
CA 2012102 C · Owner: N.S.I. Corporation · Inventors: Cunningham, David W.; Esakoff, Gregory F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dimmer rack (10) for mounting a plurality of modular units called dimmer modules(14) is disclosed. Each of the modules is used to provide dimming control for each lighting circuit in a lighting system. The rack is a vertical enclosure and utilizes a plurality of modular shelving elements (78) attached to the sides of each file to define individual receptacles for each module. Tabs (60) in the shelving register with grooves or slots (160) on the external housing of the dimmer modules whereby, precise tongue and groove mounting of each dimmer module is obtained. The rack provides vertical input power and control signal busses (30,32) which are mounted side by side at the rear of the rack …
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 March 13, 1990 and granted July 23, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 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.