Luminaires
CA 1331981 C · Owner: Powertech Industries (Proprietary) Limited · Inventors: Barclay, John Alexander
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A luminaire for fitting in a ceiling has a carrier frame with a rectangular slot in it which receives a reflector unit. The reflector unit carries lamps and is pivotably mounted to swing from its operatively longitudinal position, to a dependant position in which the lamps are accessable
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
- Granted September 13, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 13, 2011.
- 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.