Here's a little more from Kindness on the Fender body shapes:
Quote from: Kindness
If Fender wanted to reassert itself, it could. It would start by attacking the small makers, piling up settlement agreements demonstrating its enforcement. It could successively outspend more competitors, clear the tables, and reclaim the marks. It would take a lot of time and money, but it is possible.
As we have seen in Gibson's case, there would be potential blowback if Fender followed this path, but this road is open to them at any time.
No, they can't reclaim the marks, because they never had the marks to begin with. They applied in 2003, and in 2004 the USPTO published for opposition, which means that the trademarks will be approved if there are no objections within the 30 day opposition period. But there was opposition, from the consortium of builders, and after 5 years, the TTAB denied registration to Fender. It's all there in the top section of the file I linked to earlier.
There's nothing for Fender to reclaim. TTAB's decisions can be appealed in federal court, but the deadline for that was 10 years ago, and since then, the Supreme Court has ruled that TTAB's decisions in likelihood of confusion cases can't be overturned.
He's wrong.