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Expired Canadian patentCanada

Sensor of the theft and the like of an automobile

CA 1259388 A · Owner: Kabushiki Kaisha Iwata Electric · Inventors: Iwata, Keisuke

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

In this sensor a weight having a permanent magnet is fitted substantially in the middle of an elastic film fixed at the ends and a hall element or magnetic resistance element is arranged so as to be opposed at a proper spacing to the permanent magnet of the weight.

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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

  • Granted September 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 12, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 30, 1988
GrantedSeptember 12, 1989
Term endedSeptember 12, 2006
Patent numberCA 1259388 A
Classification (IPC)G08B13/24

Timeline

Timeline From CIPO dates

198919911993199519971999200120032005Application filedMay 30, 1988Patent grantedSep 12, 1989Term endedSep 12, 2006

Sources & verification

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