Metal-core weld wire for welding galvanized steels
CA 2204339 C · Owner: Bundy, Joseph · Inventors: Keegan, James M.; Daemen, Roger A.; Bundy, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metal-core weld wire usable for gas shielded arc welding gapless joints on low carbon and low alloy galvanized and galvanealed steels. The metal-core weld wire includes a low carbon steel sheath surrounding a core composition. In one embodiment, the low carbon steel sheath includes by total weight of the metal-core, weld wire between approximately 0.01 - 0.03 % C, and the core composition includes by total weight of the metal-core weld wire between approximately 0.05 - 0.20 % Ti between approximately 0.05 - 1.00 % Nb Fe powder, and Mn to the extent that themetal-core weld wire includes between approximately 0.1 - 1.0 % Mn wherein the metal-core weld wire includes between approximately 0.1 …
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 May 2, 1997 and granted November 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 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.