Safety equipment of an escalator
CA 2010856 C · Owner: Inventio Ag · Inventors: Reichmuth, Hugo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The dangerous gap between the moved step (1) and the fixed pedestal plates (10) provided at bath sides of the treadable stair belt is covered by this safety equipment with the aid of an elastic synthetic material lip (6; 7; 8; 9) fastened in the region of the tread surface (1.1) and the riser (1.2) at the side edges of the step (1) of an escalator. The synthetic material lips (6; 7; 8; 9) is a part of a synthetic material insert piece (2; 3; 4; 5), which can be screwed on in corresponding recesses on both sides of the body of the step (1) in the region of the horizontal tread surface (1.1) and in the region of the arcuate riser (1.2). In the case of possible inaccuracies of the pedestal …
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 February 23, 1990 and granted October 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 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.