Procedure and apparatus for the installation of an elevator
CA 2253267 C · Owner: Kone Corporation · Inventors: Van Der Meijden, Gert; Toth, Istvan; Pettersson, Hakan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a procedure and an apparatus for the installation of an elevator, in which, at least one suspension element is fixed to the upper part of the elevator shaft, to which is fitted a suspension means used for supporting a shaft equipment during, installation. The suspension means is mounted on the suspension element using a, mounting tool from the top floor landing.
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 6, 1998 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2020.
- 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.