I'm not sure about the exact order of the Spitzer, but I do know that the US Government had to pay a couple of hundred thousand dollars to the German firm of DWM for patent infringements on the Spitzer design. Those payments were made after the Great War so the US ended up paying the Germans for shooting German designed bullets at Germans. Go figure!
Those Spitzer payments were in addition to payments to Mauser for charger design patent problems.