35 U.S. Code § 387 - Relief from prescribed time limits
An applicant’s failure to act within prescribed time limits in connection with requirements pertaining to an international design application may be excused as to the United States upon a showing satisfactory to the Director of unintentional delay and under such conditions, including a requirement for payment of the fee specified in section 41 (a)(7), as may be prescribed by the Director.
Source(Added Pub. L. 112–211, title I, § 101(a),Dec. 18, 2012, 126 Stat. 1530.)
Section effective on the later of the date that is 1 year after Dec. 18, 2012, or the date that the Geneva Act of the Hague Agreement Concerning the International Registration of Industrial Designs enters into force with respect to the United States, and applicable only to certain applications filed on and after that effective date and patents issuing thereon, see section 103 ofPub. L. 112–211, set out as an Effective Date of 2012 Amendment note under section 100 of this title.