Drive engine for a lift installation and method of mounting a drive engine
CA 2695836 C · Owner: Inventio Ag · Inventors: Fischer, Daniel
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 lift installation and a method for mounting a drive engine (20) of a lift installation. The lift installation comprises a cage (11) and a counterweight (12) in a shaft (10). It comprises a drive engine (20) mounted on a crossbeam (8) or the shaft roof (10a). The drive engine has two spaced-apart drive zones (3 3'). The motor (1) and/or the brake (2) of the drive engine is arranged to the left or the right of the two drive zones.
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 September 2, 2003 and granted November 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 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.