US 12,204,966 B2
Metal card
Mark A. Cox, West Chester, PA (US)
Assigned to X-CARD HOLDINGS, LLC, West Chester, PA (US)
Filed by X-Card Holdings, LLC, West Chester, PA (US)
Filed on Nov. 16, 2023, as Appl. No. 18/511,144.
Application 18/511,144 is a continuation of application No. 17/838,585, filed on Jun. 13, 2022, granted, now 11,853,824.
Application 17/838,585 is a continuation of application No. 16/337,123, granted, now 11,361,204, issued on Jun. 14, 2022, previously published as PCT/US2019/020919, filed on Mar. 6, 2019.
Claims priority of provisional application 62/639,535, filed on Mar. 7, 2018.
Prior Publication US 2024/0086665 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06K 19/02 (2006.01); G06K 19/077 (2006.01)
CPC G06K 19/02 (2013.01) [G06K 19/07728 (2013.01); G06K 19/07745 (2013.01); G06K 19/07771 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A core for a credential card comprising:
a metal body defining (i) at least one through-opening defined by an inner edge with a gap between an element positioned in the at least one through-opening and the inner edge so as to electromagnetically isolate the element from the body and (ii) at least one sinuous discontinuity, wherein the at least one sinuous discontinuity comprises a channel defined by the metal body that includes at least one of a curved portion and straight portion, wherein the sinuous discontinuity communicates between an outer edge surface of the body and the inner edge.