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公开(公告)号:US09622555B2
公开(公告)日:2017-04-18
申请号:US14792209
申请日:2015-07-06
申请人: David Kopel , Mark Ronald Schwab
发明人: David Kopel , Mark Ronald Schwab
CPC分类号: A45C1/06 , A45C11/184 , A45C2001/065
摘要: A system for detecting when a credit card is withdrawn, or otherwise becomes missing, from a user's wallet and for alerting the user when he has moved a certain distance away from his original location without replacing the card.