Intrusion detecting apparatus for a vehicle
CA 2198693 C · Owner: Tsuzuki, Takeo · Inventors: Kani, Hiroyuki; Goto, Masahiro; Hayashi, Ikuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An intrusion detecting apparatus for a vehicle comprising an ultrasonic transmitting/receiving sensor (S), an intrusion detecting unit (120-151) for detecting whether or not a person intrudes into a passenger compartment, based on the received signal a, stopping unit (160) for intermittently stopping the transmission from the transmitter, and a cover detecting unit (170-211) for detecting whether or not the sensor is covered, based on the signal received after stopping the transmission of the signal and, in response to a predetermined condition representing that the sensor is covered, whereby it can correctly determine whether or not the sensor is covered, improving the accuracy of the …
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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 April 24, 2001. 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.
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.