For what I have read here, I understood that if I buy a domain of an already registered trademark (in which country, by the way?), I might have a problem at hands.
But it is not clear to me what happens if I register a domain when no trademark exists, but then someone registers the trademark (and where?).
Can that person sue me and take out the domain, which I bought before she acquired the trademark?
Here I quote some of the text from the link above as reference:
Warning. Warning. Possible trademark infringement
Here’s how it works: Mandated by ICANN for all new gTLDs, the Trademark Claims service warns trademark holders AND domain name registrants (people who register domain names) of possible trademark infringements. First, the service sends a potential domain name registrant a warning notice when they attempt to register a domain name that matches a trademarked word or phrase in the TMCH. Then, if the registrant continues to register the domain name after receiving and accepting the notice, the service sends a notification of the registration to the trademark holder.
As реr ICANN ruleѕ, the registrar (like GoDaddy) must notify customers who pre-registered or registered a domain with a trademark claim against it. The customer must acknowlеdgе the claim аgainst their domain in order for us to proceed with the registration of the domain at the registry. The way we notify customers about trademark claims, and how they acknowledge them, depends on whether they registered during Pre-Registration, Early Access or General Availability.