It can get dicey. To me, something like the Dingwall D-Bird was art. No one mistook it for a Gibson Thunderbird. Fanned frets,My opinion on the "copy" thing is more nuanced than law, or forum rules, may allow for.
Nothing not made by Gibson should say or imply it was.
Copies are art.
Fakes are theft.
& if the original maker no longer produces it, or never did make one EXACTLY like it, then so long as no claim is made that it was made by them, then no harm, no foul.
Just my opinion.
and a totally different pickup arrangement. Sadly, it was discontinued after what, about 50 were produced? I guess Gibson saw it as a threat and reportedly made noise, so it is no more. Ridiculous if you ask me.