Tea Rose – Rectanus doctrine

The Tea Rose-Rectanus doctrine or remote, good-faith user doctrine is a common law rule of United States trademark law that determines the geographic scope of rights. The doctrine allows a junior user of a mark that is geographically remote from the senior user of the mark to establish priority over a senior user's claim to the mark in the junior user's area.

Source: Wikipedia — Tea Rose – Rectanus doctrine (CC BY-SA 4.0)