A method and a surface treatment agent for preventing biofouling on surfaces under water
CA 2510140 A1 · Owner: Nyberg-Swenson, Brigit · Inventors: Nyberg-Swenson, Brigit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ecofriendly method of inhibiting biofouling on surfaces under water by using nicotine and selenium in the form of Se(0) or such a substance that can , be converted into them. Both of the substances are necessary to oxygen dependent organisms and will be used after conversion but are toxic in high , doses. By adding the substances to paint or other surface treatment agent that marine surfaces are treated with, organisms that are trying to establish themselves on the surfaces will be exposed to so high doses that reactions on , which the settling is based are disturbed. When the substances leak out into the seas, they will act as environment protectors as they promote the , …
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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 December 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 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.