The owner of a basic application pending before the United States Patent and Trademark Office, or the owner of a basic registration granted by the United States Patent and Trademark Office may file an international application by submitting to the United States Patent and Trademark Office a written application in such form, together with such fees, as may be prescribed by the Director.
A qualified owner, under subsection (a), shall-
(1) be a national of the United States;
(2) be domiciled in the United States; or
(3) have a real and effective industrial or commercial establishment in the United States.
(July 5, 1946, ch. 540, title XII, §61, as added