Method for preventing biofouling in aquatic environments
CA 2252112 A1 · Owner: Thermion Systems International · Inventors: Miller, Charles G.; Rolls, John A.; Hastings, Otis H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for preventing marine biofouling on the surface of a structure exposed to an aquatic environment is provided. The method comprises disposing an impermeable laminated heater element on the surfaces of the structure which is to be submerged into water and heating the element at prescribed intervals and to prescribed temperatures effective to kill or prevent settlement of larvae onto said 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 April 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2019.
- 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.