Light assembly
CA 2284043 C · Owner: British Nuclear Fuels Plc · Inventors: Wilson, Graham John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lighting assembly (10) which extends through the thickness of a wall (14) having a first side (16) and a second side (20) is described. The lighting assembly (10) comprises at least one light source (46) to illuminate an area on the first side (16) of said wall (14) and means being included to enable replacement of said light source from the second side (20) of said wall (14) wherein said means includes at least one duct (30) extending at least part of the way from the first side (16) of the wall (14) to the second side (20) of the wall (14); light source carrier means (50) on which said light source is mounted, said light source carrier means (50) and said light source (46) being …
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 20, 1998 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2020.
- 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.