Kit using led units for retrofitting illuminated signs
CA 2118860 A1 · Owner: Computer Power Inc. · Inventors: Malita, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A kit retrofits a conventional exit sign which normally uses, internally mounted incandescent or fluorescent lamps to, operate using multiple LED sources in a group or assembly on a board. Indicia lighting is accomplished substantially indirectly through reflection of light from the LED sources. The LED source is electrically powered through an adapter that fits into the socket of the original incandescent lamp or fluorescent lamp, which is removed in the retrofit process. Metalized plastic light reflective panels are provided in the kit for adhesively connecting to inner surfaces of the enclosure for improved lighting efficiency of the indicia. Reduction of energy consumption by 10 or 20 …
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 11, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2016.
- 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.