Brazil? Why a Brazilian patent is of such a significant interest elsewhere?
Presumably it's an "international patent" filed in Brazil.
You don't have to file your patent in every jurisdiction. There have been treaties for recognising each others intellectual property rights since the late 19th century and Brazil has been part of these from the start.
https://en.wikipedia.org/wiki/List_of_parties_to_internation...
I think this was the final patent on it that was valid anywhere, so now the status changes from "someone has a patent globally and we need to consider this" to "no one has a patent." If you're distributing something globally, even one market that still has the patent might stop you from default shipping a driver touching on it, or you might have to worry about court orders at least. It's hard to avoid jurisdictions on the open web.