text: how do i find out the history of  a company no longer in business? i purchased stock in a company-back in 1984 that had the patent on "touch screen" technology.  it was in business for 9yrs. i've been unable to find info. on the company and it's history.   i sent letters to the ceo, cfo and secretary.  two were returned and no longer living there, and i never heard back from the cfo.  how do i find out what actually happened to this company? try the better business bureau or the local courthouse where the business should have been registered.