Excellently corrosion-resistant copper alloy
CA 1248779 A · Owner: Nippon Mining & Metals Co. Ltd. · Inventors: Nobuyoshi, Ryoichi; Nishikawa, Kiyoaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed an excellently corrosion-resistant copper alloy suited for use in fabricating fins for heat exchangers particularly for automobile radiators, which is substantially consisted of 0.005 to 0.1 wt% Pb and 0.01 to 1.0 wt% Co and the remainder Cu with or without the addition of 0.01 to 1.0 wt% one or more of Al, Sn, Mg, Ni, Te, In, Cd, As Mn, Cr, Ti, Si, Zn, Be, Fe and P.
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
- Granted January 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2006.
- 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.