Method and device for automatic checking of the availability of a lift installation
CA 2499299 C · Owner: Friedli, Paul · Inventors: Richter, Lutz; Friedli, Paul; Schuster, Kilian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method for automatic checking of the availability of a lift installation (1) with at least one lift (1.1 1.2), comprises the following steps (S1 - S11). There is ascertained: at least one first estimated value (N S(it)) for a use frequency of the lift (1.1 1.2) for a first time period and/or a second estimated value (N S(i,t+.DELTA.t)) for the use frequency for a second time period wherein the second time period begins at a later point in time than the first time period. A measurement value (Nm(i,t)) for the use frequency for the first time period is determined and the measurement value compared with at least one of the estimated values (N S(i,t) N S(i,t+.DELTA.t)). If the measurement …
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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 3, 2005 and granted October 16, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.