Do I have to enter US within certain date to keep my US visa valid? Like the Canadian Landing Paper?9 q: K" |" B4 @- d' [+ @* m
4 U k1 U2 d0 a3 M% Y. c; W9 L1 M/ {I did not see that on the visa. Or maybe I missed it. {6 q3 K) e1 c( l6 T$ i+ x8 ~! H( j6 P% J( u7 B4 F) p9 d* h+ A2 t; f