Lift with control box
CA 2234333 A1 · Owner: Inventio Ag · Inventors: Richter, Utz; Schindler, Kaspar; Liebetrau, Christoph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lift with drive system which is mounted at the cage and the control box (11) of which is arranged above or below the cage door (3). Through the invention it is made possible for the service engineer to reach the electrical components of the lift such as travel, regulation, safety circuits optional drive regulation, frequency inverter etc. conveniently, standing at hand or eye level at a storey floor (5) with the shaft doors (10) opened.
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 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.