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Expired Canadian patentCanada

Modular anti-intrusion barrier

CA 1317497 C · Owner: Mothe, Gerard · Inventors: Mothe, Gerard

CIPO record

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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 device prohibiting access of alien vehicles to given zones, while allowing recognized identified and, authorized vehicles to enter consists of at least one re-, usable modular element with instantaneous positioning which requires no specific installation, comprising an accesscontrol barrier activated by the help of a lever of a release mechanism, operable by a lever and by a stopbarrier, which is released by the action of a skid on a skid pushing a bolt, the whole being incorporated in a frame. The device is characterized by the fact that it comprises a single body which is, at one and same time the access-, control barrier and the stop-barrier linked to each other, by the release …

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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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 2010.
  • 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 5, 1988
GrantedMay 11, 1993
Term endedMay 11, 2010
Patent numberCA 1317497 C
Classification (IPC)E06B11/00 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 5, 1988Patent grantedMay 11, 1993Term endedMay 11, 2010

Sources & verification

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