Method and system for guiding a user in a building
CA 2639397 C · Owner: Schuster, Kilian · Inventors: Friedli, Paul Dr.; Schuster, Kilian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the equipping of an elevator (1 2) with hardware in order to control the same. This hardware is provided in the form of a customary radio telephone (3) which serves as a unit for controlling the elevator. The radio telephone (3) also designated as mobile, comprises a keypad (4) provided as a data entry unit and comprises a display element (5), also named display which is provided as a data output unit. The mobile (3) can wirelessly communicate with a mobile radio telephone network (6) whereby speech and/or data can be transmitted. The mobile radio telephone network (6) can contact other mobiles or a terminal (7) in order to transmit speech and/or data. The terminal …
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 25, 2001 and granted July 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2023.
- 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.