Self-polishing antifouling paint
CA 2497449 C · Owner: Ekomarine Paint Ab · Inventors: Haeffner, Mikael; Ericsson, Claes Tarras
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-polishing antifouling paint comprising a binder and a biologically active substance, wherein said biologically active substance is chosen to be decomposable in the presence of water and to consume oxygen in its process of decomposition so as to generate an oxygen-lean aqueous environment in the water-exposed paint outer layer.
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 September 3, 2003 and granted April 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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.