C# Cookie Expired

public bool Expired { get; set; }

using System.Net;
using System;/*from w  ww  .ja  va2 s . c  om*/
public class CookieExample
{   
    public static void Main(string[] args)
    {   
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://google.com");
        request.CookieContainer = new CookieContainer();

        HttpWebResponse response = (HttpWebResponse) request.GetResponse();
        foreach (Cookie cook in response.Cookies)
        {
            Console.WriteLine("Cookie:");
            Console.WriteLine("{0} = {1}", cook.Name, cook.Value);
            Console.WriteLine("Domain: {0}", cook.Domain);
            Console.WriteLine("Path: {0}", cook.Path);
            Console.WriteLine("Port: {0}", cook.Port);
            Console.WriteLine("Secure: {0}", cook.Secure);

            Console.WriteLine("When issued: {0}", cook.TimeStamp);
            Console.WriteLine("Expires: {0} (expired? {1})", cook.Expires, cook.Expired);
            Console.WriteLine("Don't save: {0}", cook.Discard);    
            Console.WriteLine("Comment: {0}", cook.Comment);
            Console.WriteLine("Uri for comments: {0}", cook.CommentUri);
            Console.WriteLine("Version: RFC {0}" , cook.Version == 1 ? "2109" : "2965");
            Console.WriteLine ("String: {0}", cook.ToString());
        }
    }
}