Cookies in web application are deleted

I have a web aplication where I'm working with cookies. The problem is that in a form "A", I save the cookies with the following code in Javascript.

function uploadCookieMesa(dataCookie) {

saveCookie('qr_rest_c_icod', dataCookie.rest_c_icod); 
saveCookie('qr_rest_c_vnomb', dataCookie.rest_c_vnomb); 
saveCookie('qr_loca_c_icod', dataCookie.loca_c_icod); 
saveCookie('qr_loca_c_vnomb', dataCookie.loca_c_vnomb); 
saveCookie('qr_mesa_c_icod', dataCookie.mesa_c_icod); 
saveCookie('qr_mesa_cli_c_icod', dataCookie.mesa_cli_c_icod); 
saveCookie('qr_clie_c_icod', dataCookie.clie_c_icod); 
saveCookie('qr_mesa_cli_c_vcomentario', dataCookie.mesa_cli_c_vcomentario); 

}

function saveCookie(name,value) {

var expiresdate = new Date(2068, 1, 02, 11, 20);
document.cookie = name + "=" + encodeURIComponent(value) + "; expires=" + expiresdate.toUTCString();

}

Cookie in chrome

In this form, I could save the values but when I enter another form "B". This cookies are cleaning.

I need you help. Thanks!!!