Here is a difference between a Gibson and an Ibanez lawsuit copy that's not as well known as the others.
The headstock of a Gibson Les Paul custom uses an ebony (or similar) veneer to which the binding and inlays are self-contained. The Ibanez 2350 on the other hand, the headstock itself is bound and the face is painted, then two decals are applied; 1) the headstock logo, 2) the split diamond "inlay". Then the neck is then finished. Here are are some illustrations for your edification.
Figure 1. Using the neck of a Chinese manufacturer to illustrate, the Ibanez 2350 has the headstock itself bound. The 2350 uses a 4mm hex key as opposed to a Les Paul Custom using a 5/16" ring spanner.
Figure 2. The finished neck. Note the truss rod cover has three screws as opposed to two on the genuine article.
Figure 3. The neck for the Gibson Les Paul Custom. Again I'm using a photo of a Chinese made neck to illustrate, to which I photoshopped in the shape of the Gibson style truss rod access point.
Figure 4. The headstock veneer. Note the binding and inlays are self-contained on the veneer instead of the headstock itself. Hence the headstock binding appearing to run continuously with the fretboard binding.
Figure 5. The finished neck. The truss rod cover on the Gibson has two screws as opposed to the lawsuit Ibanez 2350 having three.
Gibson Les Paul Customs in the 70's usually had ebony fretboards. whereas Ibanez pre-lawsuit and lawsuit 2350's always had rosewood boards. The same also applied to other Ibanez copies of Gibsons which came with ebony fretboards. Eg, the 2457 (ES 355TDSV copy).
The design of the Ibanez 2350's bridge also happens to be a staple on today's "Chibson" knock offs. And on many Chibson Les Paul Custom knockoffs, the same method used on the Ibanez 2350 headstock is still used on Chibsons, except the headstock is properly inlaid (wonky as some inlays may be; Epiphone sized split diamond, Gibson logo slightly at an angle, etc.) instead of being decalled.
Note also, while Ibanez may advertise the fretboard inlays are mother of pearl, they are actually pearloid. In other words, "mother of toilet seat" as opposed to genuine mother of pearl!
Hope this bit of lawsuit trivia is of some interest.