Bill Leader's company became insolvent and the assets were wound up and sold on by the liquidator in the usual way, initially to Highway.
This occurred well after Leader/Trailer had relocated to Halifax, and I to Germany.
Consequently the company was never offered to me.
Who knows this? Well most people, though clearly not you, George.
Many things in life would have been different, with the benefit of hindsight.
Bill Leader was actually quite cheered (at the time) when your lord and master eventually acquired whatever he did acquire because he considered it preferable to it going to US academics who'd just lock it in a cupboard. Ha!