Method and installation for providing alignment guidance to an aircraft in the approach stage
CA 2026425 C · Owner: Cdr Entreprises · Inventors: Briatte, Louis Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and an installation for providing an aircraft with alignment guidance during the approach stage. At least three flashing lights are disposed on either side of the runway and directed towards an approaching aircraft. The beam directions and the timing of the light flashes are such that the pilot of an aircraft lying on the axis of the runway sees the two lights closest to the runway flash simultaneously, whereas the pilot of an aircraft that is too far to one side or the other of the axis of the runway sees a series of light flashes that appear to be running towards the axis of the runway.
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 September 27, 1990 and granted May 7, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 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.
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.