what can i do if i invented something and 3 years later i call a shoe company and try to sell them my invention. they turn me down and 3 years later they put my invention on the market what can i do 17 years later with my proof
what can i do if i invented something and 3 years later i call a shoe company and try to sell them my invention. they turn me down and 3 years later they put my invention on the market what can i do 17 years later with my proof