Surveillance of structures
CA 2281332 A1 · Owner: Elliott, John · Inventors: Paulson, Peter O.; Elliott, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A structure, particularly a structure subject to collision or vandalism such as a bridge, is monitored by instruments such as an acoustic sensing system strain guages, accelerometers and rotation sensors. A video infrared or like record is made , of the structure and kept for a predetermined period. Criteria are established to determine, instrument readings which indicate a condition of possible damage called a, triggering event. When a triggering event is recorded the video record of the , time, immediately before the event is saved to help identify what happened and the perpetrator, if any. In preferred embodiments verification is made of whether, damage occurred and the extent of …
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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 September 3, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 3, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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.