What happen to Nano Tech Gaming? Three years ago,

What happen to Nano Tech Gaming? Three years ago, It spun off from Nano Tech Entertainment with over a million dollars of assets and ever since Hightower resign and later Al Stone passed away there has been no information or shares owed Nano Tech Entertainment. I called the number listed on their websites 702-577-2895 and service is disconnected. Anyone going to Las Vegas should stop by 7180 Dean Martin Drive,Suite 300, Las Vegas, NV 89118 and see what is up. If you send email to ir@nanotechgaming.com you get no reply. Is this even a going concern when no one answers? Who is in charge? What happen to the assets? Why has NTEK not pursued this and if NTGL is an empty shell then the patents, products , furniture and bank accounts should all be returned to NTEK.