(i) Design in More Than One Useful Article.  If the distinguishing elements of a design are in substantially the same form in different useful articles, the design shall be protected as to all such useful articles when protected as to one of them, but not more than one registration shall be required for the design.

(j) Application for More Than One Design.  More than one design may be included in the same application under such conditions as may be prescribed by the Administrator.  For each design included in an application the fee prescribed for a single design shall be paid.

Section 1311.  Benefit of earlier filing date in foreign country

An application for registration of a design filed in the United States by any person who has, or whose legal representative or predecessor or successor in title has, previously filed an application for registration of the same design in a foreign country which extends to designs of owners who are citizens of the United States, or to applications filed under this chapter, similar protection to that provided under this chapter shall have that same effect as if filed in the United States on the date on which the application was first filed in such foreign country, if the application in the United States is filed within 6 months after the earliest date on which any such foreign application was filed.

Section 1312.  Oaths and acknowledgments

(a) In General.  Oaths and acknowledgments required by this chapter-

(1) may be made-

(A) before any person in the United States authorized by law to administer oaths; or

(B) when made in a foreign country, before any diplomatic or consular officer of the United States authorized to administer oaths, or before any official authorized to administer oaths in the foreign country concerned, whose authority shall be proved by a certificate of a diplomatic or consular officer of the United States; and

(2) shall be valid if they comply with the laws of the State or country where made.

(b) Written Declaration in Lieu of Oath. (1) The Administrator may by rule prescribe that any document which is to be filed under this chapter in the Office of the Administrator and which is required by any law, rule, or other regulation to be under oath, may be subscribed to by a written declaration in such form as the Administrator may prescribe, and such declaration shall be in lieu of the oath otherwise required.

(2) Whenever a written declaration under paragraph (1) is used, the document containing the declaration shall state that willful false statements are punishable by fine or imprisonment, or both, pursuant to section 1001 of title 18, and may jeopardize the validity of the application or document or a registration resulting therefrom.

Section 1313.  Examination of application and issue or refusal of registration [4]