Illuminated escalator combplate
CA 2425720 A1 · Owner: Inventio Ag · Inventors: Lauch, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An illuminated escalator combplate has a main combplate portion and a combteeth element extending forwardly of the main portion. A series of light emitters, are mounted to a forward edge of the main portion and are aligned with a, corresponding series of light pipes in the combteeth element which channel the light, of the emitters from a rearward wall adjacent the main portion forward edge to an, upper surface of the combteeth element where the light can be seen by escalator, users and serves as a safety indicator to demarcate the intersection between the, fixed combplate and the moving escalator step plates. The light emitter may be in, alternately-illuminated, interleaved gangs to …
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 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 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.