first-to-use

Anywhere- When (1) the goods were first sold or transported, or the services were first rendered, under the mark, and (2) such use was bona fide and in the ordinary course of trade.  The date the mark was first used “anywhere” means such use in the United States or elsewhere, regardless of whether the nature of the use was local or national, intrastate or interstate, or of another type.

In Commerce- When (1) the goods were first sold or transported, or the services were first rendered, under the mark in a type of commerce that may be lawfully regulated by the U.S. Congress (such as interstate commerce or commerce between the United States and a foreign country), and (2) such use was bona fide and in the ordinary course of trade.

https://www.uspto.gov/trademark/laws-regulations/dates-use

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