it depends if you live in the USA or other country. I live in the USA and it took me 12 weeks to get my back pay once the judge told me in court (he also said that I shouldn't have been denied the 1st time either, well DUH!! my caseworker was a %itch & even had the nerve to tell me that she was going to make sure I got denied seeing as I wasn't even 65 yrs. old @ the time of filing or that ill. um, I just had a stroke, 12" clot still on the brain,CD problems, anxiety, recovering from being paralyzed & couldn't drive etc. & I can work?? riiiighhtt lady...pound salt)that I was 100% disabled and could NOT work.
If it goes pass 12 weeks, call the social security office with your case/claim # and ask for an update on your status. If they start BSing you, contact your attorney.