Method and device for preventing fouling by shellfish
CA 2474188 C · Owner: Oorschot, Ronald Willem Arie · Inventors: Roos, Cornelis; Oorschot, Ronald Willem Arie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and device for preventing fouling by shellfish in technical apparatus fed with seawater or fresh water such as , cooling equipment of power plants or the chemical industry. According to the invention, the surface water to be taken in destined for the industrial , apparatus is guided along a suitable substrate, onto which substrate shellfish grow, so that in the technical apparatus considerably less fouling will occur.
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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 January 29, 2003 and granted April 26, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2025.
- 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.