Sone interesting stuff to note, they seem have trademarked, or at least using the ™️ symbol next to “Backed by Bitcoin” and “Cryptocoin”. I’m not so sure they can actually trademark these phrases/name. Anyone have any idea how that works ?
Ha, I'm not surprised, you two always find the neatest one-offs out there, after all!
As for trademarking, you can look up USA TM's here - https://www.uspto.gov/trademarks/search
More general (good) info here - https://www.uspto.gov/trademarks
I don't think it's difficult or expensive, you probably just have to read up on it etc etc..
Edit - I did not search the db for them sorry!