PUBLIC LAWS-CH. 910-AUG. 8, 1946 Papers, etc., in pos- session of Govern- ment agency. Refusal, etc., to comply with call for information. Restrictions on benefits. Extension of time for payment of fees, etc. Restrictions. Right to continue manufacture, etc. Nonapplicability. United States for any district or Territory thereof, and the Commis- sioner of Patents shall have the power to call upon any department or agency of the Government of the United States to produce information or papers in its possession relating to the communication or supply or relating to the further communication of the invention, discovery, or design by said department or agency to any person, firm, or corporation in the United States: Provided, however, That the head of any department or agency may refuse and omit to comply with any call for information or papers when in his opinion such compliance would jeopardize the national defense. No benefit under section 2 of this Act shall be extended to any person unless (1) an application for patent for the same invention, discovery, or design which was communicated or supplied as afore- said is filed in the United States Patent Office prior to the expiration of twelve months from the date of this Act; and (2) unless sufficient information in writing and under oath as to what was communicated or supplied, the date thereof and to whom made, is furnished to the Commissioner of Patents by the owner of such application while it is pending, or prior to the expiration of twelve months from the date of this Act to enable him to judge of the identity of the invention so communicated or supplied with the invention claimed in such applica- tion, which information shall be made a part of the record of such application and shall have no evidentiary value as proof of the facts stated therein; and (3) unless the country of which such person is a national extends substantially reciprocal privileges to citizens of the United States. SEC. 3. That whenever it shall be shown to the satisfaction of the Commissioner of Patents that the time now fixed by law for the pay- ment of any fee, or for the taking of any other action, with respect to an application for patent for an invention, discovery, or design has lapsed because of conditions growing out of World War II, which time had not expired on the 8th day of September 1939, or which commenced after the 8th day of September 1939, such time may be extended by the Commissioner to a date not later than twelve months after the passage of this Act, without the payment of extension fees or other penalty, in favor of citizens of the United States and the citizens or subjects of countries which have extended, now extend, or shall extend prior to the expiration of twelve months after the passage of this Act substantially reciprocal privileges to citizens of the United States: Provided,That no extension herein shall confer such privileges upon the citizens or subjects of a foreign country for a longer term than the term during which such privileges are conferred by such foreign country upon the citizens of the United States, but nothing in this Act shall give any right to reopen interference proceedings where final hearing before the Examiner of Interferences or the Board of Interference Examiners has taken place. SEC. 4 . That no patent granted or validated by reason of any exten- sion of time provided for by sections 1 and 3 of this Act shall abridge or otherwise affect the right of the United States, or of any person, firm, association, company, or corporation, or agent or agents, or his successor in business, to continue or to resume any manufacture, use, or sale bona fide commenced by it or him in the United States before the passage of this Act, or, in the case of an application claiming the benefits of section 3 hereof, commenced by it or him before the taking of action or the payment of any fee under that section if such action or payment was later than the passage of this Act, nor shall the further manufacture, use, or sale by it or him, or its or his agents or successors in business or the use or sale of the devices resulting from such manufacture or use constitute an infringement: Provided, That [60 STAT.