Method and apparatus for activating weather warning devices
CA 2759095 C · Owner: Weatherdata, Inc. · Inventors: Smith, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a system and method for activating one or more warning devices such as tornado sirens, from a remote or central location. Warning devices situated across geographically dispersed areas can be remotely controlled from a central location such as a weather center, on the basis of detected and predicted weather patterns. One or more warning devices can be quickly and easily activated through a computer-implemented user interface that allows a user to select a group of warning devices that are in the path of an approaching tornado. Each warning device is activated through a communication line that transmits an activation code to each device. Each device provides …
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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 June 27, 2001 and granted August 16, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 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.