Patent Yard Sign in
Expired Canadian patentCanada

Airport runway monitoring system

CA 2023747 C · Owner: Wetzel, Donald C. · Inventors: Wetzel, Donald C.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A system for monitoring and recording the movement of aircraft and their external characteristics and paths during and after landing and take-off from an airport runway detects malfunctions, pilot error, equipment failure or other evidence that might assist in determining the cause of a crash or other malfunction. The system includes a plurality of video cameras located adjacent to the runway, a video recording device for saving information from the cameras, and video transmission means connecting the cameras to the recording device.

Read the whole patent

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 August 22, 1990 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 22, 1990
GrantedFebruary 13, 2001
Term endedAugust 22, 2010
Patent numberCA 2023747 C
Classification (IPC)H04N7/18 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 22, 1990Patent grantedFeb 13, 2001Term endedAug 22, 2010

Sources & verification

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