Its likely not possible - a better course of action would be to donate to the litigation to protect your interests. Someone with messaging can reach out to you to give you particulars.
You would have takers if the price was low enough. Shares of delisted companies can be sold. The point would be-why bother? You would probably only get trips for them, and the risk reward for you would be better by holding them. We will get something for our shares-how much is being debated.