A passive road sensor for automatic monitoring and method thereof
CA 2261606 A1 · Owner: Kafri, Oded · Inventors: Cohen, Simon S.; Kafri, Oded
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic traffic monitoring system for enforcing traffic laws and regulations and for general purpose traffic monitoring includes a novel passive road sensor that accurately detects the kinematics of moving vehicles. A passive road sensor includes a detector protected in an enclosure which is , embedded in a road opening, in a continuous listening mode. When the wheels of a passing vehicle come in contact with either the road opening the enclosure, or both, the resulting mechanical impact generates a disturbance that triggers the detector. A processor unit of the automatic traffic monitoring system records the signal sensed by the detector and analyzes its temporal …
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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 July 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2019.
- 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.