Notwithstanding subsection (2) of section 5 of this Act, where, because of an emergency or other temporary circumstances, the Commissioner is satisfied that it is or will be necessary or desirable to close the Patent Office on any day and it is not practicable to give notice of the closure in the Journal as required by that subsection, the Commissioner may, without giving that notice, declare the Patent Office closed for the transaction of public business on that day in accordance with the provisions of this section.

In every case where the Commissioner proposes to declare or has declared the Patent Office closed under subsection (1) of this section he shall, if practicable, display a public notice of that fact in or on the building in which the Patent Office is situated.

As soon as practicable thereafter the Commissioner shall also cause a copy of the public notice, or (if no such notice was displayed) a notice of the exercise of his powers under this section, to be published in the Journal.”