Equipment for fine positioning of a cage of a multi-stage cage
CA 2501142 C · Owner: Hoffmann, Rene · Inventors: Schaffhauser, Urs; Strebel, Rene; Hoffmann, Rene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the case of this multi-stage cage there is provided equipment for fine positioning of a , cage of the multi-stage cage for a lift wherein the cage thresholds of the , cages are positionable at the level of the storey thresholds. For fine positioning of the cages there is , provided adjusting equipment which operates on the principle of a double lever and which , moves a cage frame (19) along a path (delta Z).
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 March 17, 2005 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2025.
- 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.