I was able to resolve it using the following solution below
result.d.dob is my input value /Date(1224043200000)/ and it returns a MM/dd/yyyy format.
var value = result.d.dob;
if (value.substring(0, 6) == "/Date(") {
var dt = new Date(parseInt(value.substring(6, value.length - 2)));
var dtString = (dt.getMonth() + 1) + "/" + dt.getDate() + "/" + dt.getFullYear();
}
$('#dob').val(dtString);