Lift, in particular inclined lift
CA 2079096 C · Owner: Hiro Lift Hillenkotter + Ronsieck Gmbh · Inventors: Hein, Wilfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lift, in particular an inclined lift has two fixed track, profiles that run parallel to each other on which guide rollers, run that are mounted on roller bearings so that they can swivel and contact the track profiles from different sides. At least one guide roller on each roller bearing is designed as a drive gear. The circumference of the drive gear is pressed against the respective engagement area of the track profile by spring force in such a way that the drive force of the drive gear is transferred, at least mainly, to the track profile by frictional connection.
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 4, 1992 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2014.
- 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.