I am no lawyer, but wouldn't the copyright return to the programmer once the company he wrote the software for went bankrupt? Especially since no one else bought the rights to it.
This is how many 80's games have been re-released recently.
No that isn't an automatic thing. It would have to be included in the contract. It would usually only happen if you wrote the software and took it to someone else to publish, not if you were paid to develop the software as an employee.
Also commodore only licensed the unix source themselves & the contract for that will probably have terminated those rights when commodore went under.
