Can we draw the following hypothesis from the context? 

Context:

Well, I think that it could very well be yes, for the reason that in the 1790 statute the Congress specifically was aware of -- that there were State copyright laws which didn't last as long as the Federal statute. Several of the States hadn't finished enacting those copyright laws, and a couple of States hadn't enacted them at all.

Hypothesis: States solved the issue of state copyright laws several years later.
It's impossible to say