Where can I check if and an idea I have for a product is not already out there?
I have an idea, and a company is willing to help me with it, but they want to charge me to check if there is no other product like mine, I can't afford to pay them what they are asking for, so they said I can do my own investigation and turn it in to them, sign a doucment saying if there is something out there and they get a law suit, is on me. What I need to know, is how or where can I investigate if there is a product like mine somewher out there. Who do I ask for help or advise?