15 U.S.C. § 1141l: Assignment of an extension of protection

An extension of protection may be assigned, together with the goodwill associated with the mark, only to a person who is a national of, is domiciled in, or has a bona fide and effective industrial or commercial establishment either in a country that is a Contracting Party or in a country that is a member of an intergovernmental organization that is a Contracting Party.