37 C.F.R. § 1.8
(b)
In the event that correspondence is considered timely filed by being mailed or transmitted in accordance with
paragraph (a) of this section, but not received in the U.S. Patent and Trademark Office after a reasonable amount of time has elapsed from the time of mailing or transmitting of the correspondence, or after the application is held to be abandoned, or after the proceeding is dismissed or decided with prejudice, or the prosecution of a reexamination proceeding is terminated pursuant to
§ 1.550(d) or
§ 1.957(b) or limited pursuant to
§ 1.957(c), or a requester paper is refused consideration pursuant to
§ 1.957(a), the correspondence will be considered timely if the party who forwarded such correspondence:
(1)
Informs the Office of the previous mailing or transmission of the correspondence promptly after becoming aware that the Office has no evidence of receipt of the correspondence;
(2)
Supplies an additional copy of the previously mailed or transmitted correspondence and certificate; and
(3)
Includes a statement that attests on a personal knowledge basis or to the satisfaction of the Director to the previous timely mailing, transmission or submission. If the correspondence was sent by facsimile transmission, a copy of the sending unit's report confirming transmission may be used to support this statement. If the correspondence was transmitted via the USPTO patent electronic filing system , a copy of an acknowledgment receipt generated by the USPTO patent electronic filing system confirming submission may be used to support this statement.
Notes, amendments, and revision history
Amendments
[58 FR 54502, Oct. 22, 1993; 58 FR 64154, Dec. 6, 1993, as amended at 61 FR 56447, Nov. 1, 1996; 62 FR 53181, Oct. 10, 1997; 67 FR 523, Jan. 4, 2002; 68 FR 48288, Aug. 13, 2003; 69 FR 49997, Aug. 12, 2004; 69 FR 56536, Sept. 21, 2004; 72 FR 2775, Jan. 23, 2007; 72 FR 18904, Apr. 16, 2007; 73 FR 47684, Aug. 14, 2008; 77 FR 42173, July 17, 2012; 80 FR 17953, Apr. 2, 2015]
Authority
Authority: 35 U.S.C. 2(b)(2), unless otherwise noted.
Source
Source: 24 FR 10332, Dec. 22, 1959, unless otherwise noted.
Amendments
[58 FR 54502, Oct. 22, 1993; 58 FR 64154, Dec. 6, 1993, as amended at 61 FR 56447, Nov. 1, 1996; 62 FR 53181, Oct. 10, 1997; 67 FR 523, Jan. 4, 2002; 68 FR 48288, Aug. 13, 2003; 69 FR 49997, Aug. 12, 2004; 69 FR 56536, Sept. 21, 2004; 72 FR 2775, Jan. 23, 2007; 72 FR 18904, Apr. 16, 2007; 73 FR 47684, Aug. 14, 2008; 77 FR 42173, July 17, 2012; 80 FR 17953, Apr. 2, 2015]