by United States Congress

“ Such other individuals, or body or class of individuals, as may be natives, citizens, or subjects of any nation which is an ally of a nation with which the United States is at war, other than citizens of the United States, wherever resident or wherever doing business, as the President, if he shall find the safety of the United States or the successful prosecution of the war shall so require, may, by proclamation, include within the term ‘‘ally of enemy’’. ”

“ When an applicant whose patent is withheld as herein provided and who faithfully obeys the order of the President above referred to shall tender his invention to the Government of the United States for its use, he shall, if he ultimately receives a patent, have the right to sue for compensation in the Court of Claims, such right to compensation to begin from the date of the use of the invention by the Government. ”

“ No person shall be held liable in any court for or in respect to anything done or omitted in pursuance of any order, rule, or regulation made by the President under the authority of this Act. Any payment, conveyance, transfer, assignment, or delivery of money or property made to the alien property custodian hereunder shall be a full acquittance and discharge for all purposes of the obligation of the person making the same to the extent of same. ”