Inventech review: Invention

I need to know how to sue inventech myself. I invented the lighter leash in like 2004. I signed a lot of paperwork and spoke with someone on the phone. He said that he did the research and thought I had a good idea that it would sell. I was quoted a price of 7 hundred something to patent but I was unable at the time. It has been selling in stores for years now. I get sick every time I see one.

Does anyone know who to talk to about legal advice.