Just about everyone thought PPS had "the rights" Tony. It was repeated constantly on pinside that PPS had "the rights". As far as I know, PPS never replied with commentary either way on that.  I had spoken with Greg years ago when I started collecting parts for mine, and he believed Gene had no rights to start with. So I ignored any risk of some rights owner having a go at me and nothing happened. I was aware of the trademark - I actually thought it had expired.