Structure used in seawater, copper alloy wire or bar forming the structure, and method for manufacturing the copper alloy wire or bar
CA 2686478 C · Owner: Mitsubishi Shindoh Co. Ltd. · Inventors: Oishi, Keiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fish cultivation net 3 has a rhombically netted form made by arranging a large number of waved wires 6 in parallel such that the adjacent wires are entwined with each other at their curved portions 6a. The wires 6 has a composition containing 62 to 91 mass% of Cu 0.01 to 4 mass% of Sn, and the balance being Zn. The Cu content Cu and the Sn content Sn in terms of mass% satisfy the relationship 62 <= Cu-0.5Sn <= 90. The copper alloy material has a phase structure including an a phase a .gamma. phase, and a .delta. phase and the total area ratio of these phases is 95 to 100%.
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 August 10, 2005 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 10, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.