Provisional Patent Format Provisional Patent?

Provisional Patent? - provisional patent format

I read in the website are uspo provisional patents not examined. Does this mean that they can not tell if my patent is an original idea? I studied the idea of the extent of my abilities - but what if I miss anything?

I already have a provisional patent and do not want to invest, financially or mentally (more than they already have) into something if you have the idea already. At first I thought that by accepting the filing of a provisional application, and "", which meant that he was "my idea".

Thank you ~