Non-tin-based, low toxicity anti-fouling agents
CA 2008336 C · Owner: Dick, Richard J. · Inventors: Dick, Richard J.; Mcginniss, Vincent D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are marine anti-fouling compositions such as coating, compositions, of a thermoplastic or thermoset binder solvent, and , anti-fouling agent wherein the anti-fouling agent comprises a pesticide or herbicide having a value of between about 0.01 and 0.5 a Z parameter for, vinyl or aromatic compounds of between about 0.01 and 0.08 and an LD50, value of greater than 200 mg/kg against rats and mice.
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 January 23, 1990 and granted September 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2012.
- 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.