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Expired Canadian patentCanada

Obstacle detection system

CA 2247529 C · Owner: Sverdlov, Erez · Inventors: Baum, Abraham; Sverdlov, Erez; Peer, Arik

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system for alerting a driver of a vehicle of the presence of an obstacle in a track of the vehicle, comprising a sensor mounted on the vehicle for producing at least one sensor signal representative of a predetermined field of view of the track in front of the vehicle and an obstacle detection device , coupled to the sensor for processing the at least one sensor signal produced thereby so as to detect an obstacle in the track and produce an obstacle detect signal consequent thereto. An obstacle avoidance device is mounted in the vehicle and coupled to the obstacle detection device and is responsive to the obstacle detect signal for producing an obstacle avoidance signal. According …

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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 February 27, 1997 and granted November 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 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.
FiledFebruary 27, 1997
GrantedNovember 5, 2002
Term endedFebruary 27, 2017
Patent numberCA 2247529 C
Classification (IPC)B61L23/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedFeb 27, 1997Patent grantedNov 5, 2002Term endedFeb 27, 2017

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.