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Expired Canadian patentCanada

Method and device for supervising the speed of an object

CA 1092701 A · Owner: Olesen, Lykke · Inventors: Olesen, Lykke

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

Method and Device for Supervising the, Speed of an Object ABSTRACT OF THE DISCLOSURE, A system for supervising the speed of an object such as a vehicle, relative to a reference point wherein, a TV-camera is utilized. The TV-camera is mounted at the reference point and directed at a certain, perferably right angle to the direction of movement of the object so that, the field of view of the TV-camera includes a measuring distance. The video output signal from the TV-camera is fed to a black level sensor which in turn activates a pulse generator while the image of the object is passing between two given marking lines on the TV-image corresponding to the measuring distance. The pulses thus …

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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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 12, 1976
GrantedDecember 30, 1980
Term endedDecember 30, 1997
Patent numberCA 1092701 A
Classification (IPC)G01P3/50 +2 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedOct 12, 1976Patent grantedDec 30, 1980Term endedDec 30, 1997

Sources & verification

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