Landing system for a helicopter on board a vessel
CA 2063549 A1 · Owner: Reimering, Wilhelm R. M. · Inventors: Wolters, Henk R.; Reimering, Wilhelm R. M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Landing system for landing, moving and stationing a helicopter on a vessel, which system comprises a landing deck mounted on the vessel, said deck being provided with an anchorage grid consisting of a large number of openings separated from one another by bridges and a harpoon device fitted on or to be fitted in the helicopter, said harpoon device being provided with a number of essentially barb-like elements (30) which are fitted symmetrically around its centre line and are capable of being folded out in the radial direction and which in the folded-out, state, are able to engage behind the bridges forming the boundaries of an opening (6) in the anchorage grid (5) in a manner such that all …
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 3, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 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.