Domestic Violence convition dismissed 1203.4 and firearms?

I understand having your domestic conviction in California expunged by 1203.4 does not restore firearm rights, aside from the 10 year state ban there is also a lifetime prohibition, however, I found this flyer on the ATF website here: http://www.atf.gov/publications/download/i/atf-i-3310-3.pdf that says if you have it expunged and the court restores your rights you MAY possess a firearm. If I retain an attorney, and at my local superior court can get the judge to restore my firearm rights early of the 10 year rule, would this also lift the federal prohibition?