The short answer is no, we only started selling the assets three weeks ago, a few months after announcing the shutdown.

The longer answer is that selling part of your business while continuing in a business that is in any way related is usually very challenging from a legal standpoint. The lawyers call it the "spaghetti effect", basically the IP tends to be really tangled. We had serendipitous developments a few weeks back in how Airstone is built which let us create a hermetic barrier between the Airstone and Tinkercad IP's. Before that happened we had no way of selling the IP without taking an unacceptable risk.