Marine antifouling methods and compositions
CA 2362569 A1 · Owner: Leavitt, Richard Irwin · Inventors: Leavitt, Richard Irwin; Selvig, Thomas Allan; Powers, Warren Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are marine antifouling compositions and/or paints containing hydrolytic enzyme(s), microorganism(s) or mixtures of the hydrolytic , enzyme(s) and microorganism(s) wherein the microorganism or hydrolytic enzyme reduce fouling of a surface coated by the marine antifouling composition and/or paint. Such compositions and/or paints may contain a catalytically effective amount of an inorganic salt. Also disclosed are articles coated with the composition and/or paint. Finally, methods are disclosed for reducing fouling of a marine surface, for reducing marine corrosion for limiting , absorption of water by a marine surface for reducing the coefficient of drag , of a marine surface …
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 February 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2021.
- 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.