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15 U.S. Code § 1141g - Right of priority for request for extension of protection to the United States

The holder of an international registration with a request for an extension of protection to the United States shall be entitled to claim a date of priority based on a right of priority within the meaning of Article 4 of the Paris Convention for the Protection of Industrial Property if—
(1)
the request for extension of protection contains a claim of priority; and
(2)
the date of international registration or the date of the recordal of the request for extension of protection to the United States is not later than 6 months after the date of the first regular national filing (within the meaning of Article 4(A)(3) of the Paris Convention for the Protection of Industrial Property) or a subsequent application (within the meaning of Article 4(C)(4) of the Paris Convention for the Protection of Industrial Property).
(July 5, 1946, ch. 540, title XII, § 67, as added Pub. L. 107–273, div. C, title III, § 13402, Nov. 2, 2002, 116 Stat. 1917.)