But this feud is only about names and who may embellish his brand by referring to the Ted McCarty legacy. The two guitars in question look nothing alike - by a stretch.
If I may offer an opinion as a non-trademark attorney: Why Gibson should not be able to call their product "Theodore" if he indeed designed the shape is beyond me. Nobody could be mislead by this. It wasn't Gibson who started the dispute.
Gibson's counterclaim re that specific fin name? File under "retaliatory trademark litigation", a frequent practice by companies to have something to throw in the prospective settlement pot.
All a bit silly really.