Mark S. Hubert PC | Mark Hubert
It appears you want a guarantee that your idea will make you a fortune before you spend a dime. It doesn't work like that. If you believe in your idea then spend the money to protect it with a patent. However I would not spend one red cent to a company that promises to introduce your idea to the market and make you all sorts of money.
Answer Applies to: Oregon
Devon & Associates | Marcia A. Devon
It depends on what kind of company. Is it someone is helping you make a prototype? You must expect to spend money making a working prototype and filing your patent application. If it is one of those invention marketing companies, do not give them any money.
Answer Applies to: California