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Expired Canadian patentCanada

Silver containing copper alloy

CA 2416574 C · Owner: Global Metals, Llc · Inventors: Tyler, Derek E.; Caron, Ronald N.; Seeger, Jorg

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Abstract From the Canadian patent

A copper that consists essentially of, by weight from 0.15% to 0.7% of , chromium, from 0.005% to 0.3% of silver from 0.01% to 0.15% of titanium, from 0.01% to 0.10% of silicon, up to 0.2% of iron up to 0.5% of tin, and the , balance copper an inervitable impurities has high strength a yield strength , in excess of 552 MPa and high electrical conductivity, in excess of 80% IACS. The alloy further has substantially isotropic bend characteristics when the processing route includes a solution heat anneal (14) above 850 ~C and susequent cold rolling (20) into sheet strip of foil interspersed by bell , annealing (22). As a result the alloy is particularly suited for forming into box-type …

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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 7, 2001 and granted May 31, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 7, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 7, 2001
GrantedMay 31, 2011
Term endedAugust 7, 2021
Patent numberCA 2416574 C
Classification (IPC)C22F1/08 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 7, 2001Patent grantedMay 31, 2011Term endedAug 7, 2021

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.