Spendable anode for anticorrosion protection of offshore structures, and process for manufacturing it
CA 2118658 A1 · Owner: Valla, Gianluigi · Inventors: Valla, Gianluigi; Draghetti, Mario; Bonora, Pierluigi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IMPROVED SPENDABLE ANODE FOR ANTICORROSION PROTECTION OF OFFSHORE STRUCTURES, AND PROCESS FOR MANUFACTURING IT". Abstract, A spendable anode for the anticorrosion protection of offshore structures, is constituted by a composite structure in which a first anodic material which constitutes an external coating on the same anode carrier means, with said material having a more negative electrochemical potential than of the material which constitutes the offshore structure to be protected, is provided, in its turn with an, external coating constituited by a second anodic material the electrochemical potential of which is still more negative than of said first material. Furthermore some types of …
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 March 9, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2016.
- 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.