Stairlights
CA 2023699 A1 · Owner: Diamond Stairlight Industries · Inventors: Van Beek, Gary; Sears, Lawrence A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lighting strip for illuminating domestic stairways at the stair riser and stair tread that is both safe and relatively inexpensive. The device provides a lighting strip for supplying low level lighting in staircases or the like having, a means for providing a low level regulated voltage output from an ac voltage supply, a plurality of light means, a housing means for receiving and holding the light means, and the housing means is adapted to be installed under the juncture of a stair riser and stair tread, and connector means connects the light means to the low level voltage output.
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 August 21, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2012.
- 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.