Escalator or moving walk with ropelike tiedown
CA 2543478 C · Owner: Inventio Ag · Inventors: Krampl, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Escalator or moving walk (1) with a truss (7) that is supported in the area of its extreme ends. In the area between its two extreme ends the truss (7) has at least one tension element (11) which at a first end is connected mechanically to the truss (7) and at a second end to a fastening point (12). The tension element (11) is executed in such manner that it exerts on the truss (7) a tensile force (F) that acts at least partly in the direction of the earth's gravitational force.
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 13, 2006 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 13, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.