Invention Grant
- Patent Title: Silver alloy
- Patent Title (中): 银合金
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Application No.: US14352386Application Date: 2012-10-16
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Publication No.: US09200350B2Publication Date: 2015-12-01
- Inventor: Thierry Copponex , Kang Ping Haung
- Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Applicant Address: GB London
- Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Current Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Current Assignee Address: GB London
- Agency: Young & Thompson
- Priority: GB1117877.9 20111017
- International Application: PCT/GB2012/052557 WO 20121016
- International Announcement: WO2013/057480 WO 20130425
- Main IPC: C22C5/06
- IPC: C22C5/06 ; C22C1/02
Abstract:
A silver alloy with exceptional resistance to both tarnishing and firestain includes at least 92.50% silver, from 0.70 to 1.65% germanium, from 1.30 to 1.80% indium, from 0.000 to 0.015% boron, not more than 1.0% palladium and not more than 0.20% copper.
Public/Granted literature
- US20140271340A1 SILVER ALLOY Public/Granted day:2014-09-18
Information query
