Landing pylon
CA 2015859 C · Owner: Bennett, Reginald S. · Inventors: Bennett, Reginald S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Inventor: Reginald S. Bennett A B S T R A C T, A truncated pyramidal pylon has outwardly, reflectant side walls each sloping at 8° - 10° to the vertical for helicopters and 3° - 6° to the vertical for fixed wing aircraft. The outwardly reflectant side walls are adapted to give a stronger reflection to an aircraft or helicopter on a desired approach path and a lesser but substantial reflection in other directions. The pylon may be constructed from hingedly connected flat surfaces with a surface corresponding to each side foldable, to provide the assembled pylon.
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 1, 1990 and granted May 12, 1992. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 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.