Artificial turf airport marking system
CA 2790041 C · Owner: Avturf L.L.C. · Inventors: Sullivan, Thomas M.; Schomburg, William L.; Collett, Dale L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An artificial turf for providing a marking at an airport the artificial turf comprises a backing; a plurality of base fibers secured to the backing; and a plurality of first marking fibers secured to the backing so as to visually define at least a portion of a first airport marking. The first marking fibers are located on the backing so that the turf installed along a runway or taxiway at the airport is so positioned and arranged that at least a portion of a like pavement marking appears on the runway or taxiway of the airport adjacent to the first marking fibers.
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 November 16, 2001 and granted August 27, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2023.
- 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.