Light distributor for a lighting device and lighting device and use of a lighting device
CA 2346744 A1 · Owner: Hess, Jean-Marc · Inventors: Hess, Jean-Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lighting device has a light source and a light distributor arranged under it. Said light distributor has a distributor element which preferably consists of sheet metal and has an extensive main section with an incidence side facing the light source and a number of holes for the passage of light which widen in the direction away from the incidence side and a collar for, each of said holes. Preferably a diffuser is arranged, above the distributor element and possibly a diaphragm preferably consisting of sheet metal, is arranged above said diffuser. The light distributor deflects and distributes light radiated downward through it in such, a way that said light makes at least a desired angle …
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 May 8, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2023.
- 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.