Hi there,
I could model your product, my advantage being that I have several patent application too.
I know what required for a best description for patenting, and I could make the model and drawings in both views: shaded and line drawing, or if necessary (I sought that lot of USPTO applications uses) b/w ilustration.
The output format will be 3D model in all usual file format (3D pdf - which could be opened with Acrobat Reader, iges, stl, stp, obj, etc), renderings, and drawings.