Auxiliary monitoring of emergency access calls
CA 2270700 C · Owner: Smith, Harold R. Jr. · Inventors: Smith, Harold R. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The system for auxiliary monitoring of emergency access calls functions to identify the geographical location of the origination point of the emergency, access call and interconnects the appropriate emergency response agency that serves this geographic location to the emergency access call. The emergency access system is programmed to divide the covered region into a plurality of cells, with each cell defining a serving emergency agency and/or serving auxiliary emergency agency. Upon receipt of an incoming emergency call from a telephone station, the switching system determines the location from which the, emergency access call originated, and which cell(s) define the serving emergency …
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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 May 4, 1999 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2021.
- 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.