Self-righting inflatable liferaft
CA 2225781 C · Owner: Survitec Sas · Inventors: Lavorata, Marc; Richard, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Self-righting inflatable liferaft (1) comprising an outer edge (2) made up of at least one inflatable flotation surrounding a reinforced bottom (3) attached in a watertight manner to the said flotation at least one inflatable tubular arch (4) extending above the raft between two opposite sides of the inflatable flotation (2) although plans call for at least two arches (4) installed more or less in parallel; each arch (4) is equipped with a gas holder (8) mounted to the outside surface of the arch (4) at a point in the arch located at an angle (.alpha) of approximately 30 to 60 degrees above horizontal the combination of the arch (4) and the gas holder (8) being asymmetrical in relation to …
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 December 16, 1997 and granted May 1, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2019.
- 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.