Ha, wouldn't be concerned about patents or trademarks, lever patents in the US Patent Office are as old as Archimedes' himself. Best they can do is to get a design arts patent, move one hole a millimeter, and would void it. Besides doing this for yourself, and not for personal gain and going public with it. Where my curiosity lies in this design with the roof midway, how much can you move this roof laterally? Usually on designs like this, they have guides at the end of travel to properly aligned these long levers for proper closure. We eliminated the possibility that you didn't do anything wrong when you pushed the button to close this thing. It broke all by it's lonesome self. Since no one was injured in this closure, really don't have a complaint to NHTSA, but if the possibility exists, would. When we voted for guys that promised less government and deregulation, must have been thinking about the IRS and the tax assessor. Not the FTC that was the first to go or deregulation on heath insurers.