I'm still in the boat of I'll believe it when I see it. That calculator is just that. Until there is litigation or unchallenged use in the states of the axis lock all of this is speculation. I mean we went from vehement speculation it was expired to speculating it is not expired. Who knows. I'll choose the conservative path for now in that until an actual authority on the subject rules, the patent is in enforcement.
By that measure, you must believe that you are using a computer that infringes on IBM's patent.
The patents are very obviously expired, but there is no litigation that says so. Ergo, they are not expired and you are supporting infringement.
Same could be said for your multi-tool that was first patented in the early 1900's (and not by any of the current mfgrs), and for any knife that has a thumb nick for opening the blade, a "wave" or anything like it (Spyerdco's legal provision of their hole was for any removal of blade stock that allows to assist the opening of the blade), even the steering system for a car.
Or, do you just get upset for some assumed infractions and not others?