Information signs for aircraft runways or taxiways
CA 2069232 A1 · Owner: Telefunken Systemtechnik Gmbh · Inventors: Hengvoss, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An information sign on airfield runways or taxiways to impart information to aircraft captains or vehicle drivers. In order to increase operating safety and capacity in the taxiing area the, indicator surface of the information sign incorporates an changeable aircraft or vehicle-specific symbolism to impart information concerning the runway or taxi route that has been assigned to an aircraft or vehicle. A control unit that can be controlled from a central computer is provided to display the symbols. Figure.
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 May 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2014.
- 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.