Indirect luminaire optical system
CA 2424911 A1 · Owner: Genlyte Thomas Group Llc · Inventors: Dahlen, Kevin S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An indirect luminaire optical system having linear tubular lamps, parabolic reflector assemblies positioned under the lamps, kick reflectors positioned adjacent to the sides of the lamps, and a housing positioned around the lamps and reflectors with the housing having a substantially open top for allowing light to exit the optical system. Each parabolic reflector assembly may have a pair of substantially parabolic shaped reflectors joined to form a apex along and directly under the corresponding lamp lamp. The kick reflectors may be in a spaced relationship with the parabolic reflector assemblies thereby, defining openings therebetween. The bottom portion of the housing may have translucent …
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 April 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2025.
- 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.