I'm pretty sure Lucas did in fact get the rights to the original film starting in 1995 with the Faces THX-certified "one last time" release although I could be wrong and it may have happened earlier. Looking at my three official copies of ANH right hurr, the '95 vhs reads "Copyright '77 Fox Corporation. All rights reserved. Trademark and copyright '77 Lucasfilm Limited. Reserved (I'm assuming that's what the R with the circle around it means), trademark and copyright 1995 Lucasfilm Limited. All Rights Reserved. Used Under Authorization."

The '97 vhs reads "Reserved, Trademark and Copyright 1977 & 1997 Lucasfilm Limited. All Rights Reserved. Used Under Authorization."

The '04 dvd reads "Reserved, Trademark and Copyright 1977, 1997 and 2004 Lucasfilm Limited. All Rights Reserved. Used Under Authorization. 'Star Wars' and all associated characters, logos and other elements are the property of Lucasfilm Limited."