copyright question

[Donna Halper]

And it was said--

>I have three WCOP survey sheets from 1958-59.  They all have
>copyright notices in the name of Plough Broadcasting Corporation.

That was exactly my area of confusion-- there is no more Plough 
Broadcasting, and I too wanted to use a WCOP survey in my article-- 
but I can't imagine who could grant me permission.  SO are you saying 
the copyright renewed automatically in 1987, or are you saying I 
might be able to use it under "fair use"?  I figure that using a WRKO 
survey from the top-40 days requires asking somebody at the current 
WRKO and hoping for the best.  But those long since defunct stations 
are what puzzled me.