[Code of Federal Regulations]
[Title 37, Volume 1]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 37CFR1.6]

[Page 16-18]
 
              TITLE 37--PATENTS, TRADEMARKS, AND COPYRIGHTS
 
  CHAPTER I--UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF 
                                COMMERCE
 
PART 1--RULES OF PRACTICE IN PATENT CASES--Table of Contents
 
                      Subpart A--General Provisions
 
Sec. 1.6  Receipt of correspondence.

    (a) Date of receipt and Express Mail date of deposit. Correspondence 
received in the Patent and Trademark Office is stamped with the date of 
receipt except as follows:
    (1) The Patent and Trademark Office is not open for the filing of 
correspondence on any day that is a Saturday, Sunday, or Federal holiday 
within the District of Columbia. Except for correspondence transmitted 
by facsimile under paragraph (a)(3) of this section, or filed 
electronically under paragraph (a)(4) of this section, no correspondence 
is received in the Office on Saturdays, Sundays, or Federal holidays 
within the District of Columbia.
    (2) Correspondence filed in accordance with Sec. 1.10 will be 
stamped with the date of deposit as ``Express Mail'' with the United 
States Postal Service.
    (3) Correspondence transmitted by facsimile to the Patent and 
Trademark Office will be stamped with the date on which the complete 
transmission is received in the Patent and Trademark Office unless that 
date is a Saturday, Sunday, or Federal holiday within the District of 
Columbia, in which case the date stamped will be the next succeeding day 
which is not a Saturday, Sunday, or Federal holiday within the District 
of Columbia.
    (4) Trademark-related correspondence transmitted electronically will 
be stamped with the date on which the Office receives the transmission.
    (b) [Reserved]
    (c) Correspondence delivered by hand. In addition to being mailed, 
correspondence may be delivered by hand during hours the Office is open 
to receive correspondence.

[[Page 17]]

    (d) Facsimile transmission. Except in the cases enumerated below, 
correspondence, including authorizations to charge a deposit account, 
may be transmitted by facsimile. The receipt date accorded to the 
correspondence will be the date on which the complete transmission is 
received in the Patent and Trademark Office, unless that date is a 
Saturday, Sunday, or Federal holiday within the District of Columbia. 
See Sec. 1.6(a)(3). To facilitate proper processing, each transmission 
session should be limited to correspondence to be filed in a single 
application or other proceeding before the Patent and Trademark Office. 
The application number of a patent or trademark application, the control 
number of a reexamination proceeding, the interference number of an 
interference proceeding, the patent number of a patent, or the 
registration number of a trademark should be entered as a part of the 
sender's identification on a facsimile cover sheet. Facsimile 
transmissions are not permitted and if submitted, will not be accorded a 
date of receipt, in the following situations:
    (1) Correspondence as specified in Sec. 1.4(e), requiring an 
original signature;
    (2) Certified documents as specified in Sec. 1.4(f);
    (3) Correspondence which cannot receive the benefit of the 
certificate of mailing or transmission as specified in Sec. 1.8(a)(2)(i) 
(A) through (D) and (F), Sec. 1.8(a)(2)(ii)(A), and Sec. 
1.8(a)(2)(iii)(A), except that a continued prosecution application under 
Sec. 1.53(d) may be transmitted to the Office by facsimile;
    (4) Drawings submitted under Sec.Sec. 1.81, 1.83 through 1.85, 
1.152, 1.165, 1.174, 1.437, 2.51, 2.52, or 2.72;
    (5) A request for reexamination under Sec. 1.510 or Sec. 1.913;
    (6) Correspondence to be filed in a patent application subject to a 
secrecy order under Sec.Sec. 5.1 through 5.5 of this chapter and 
directly related to the secrecy order content of the application;
    (7) Requests for cancellation or amendment of a registration under 
section 7(e) of the Trademark Act, 15 U.S.C. 1057(e); and certificates 
of registration surrendered for cancellation or amendment under section 
7(e) of the Trademark Act, 15 U.S.C. 1057(e);
    (8) Correspondence to be filed with the Trademark Trial and Appeal 
Board, except the notice of ex parte appeal;
    (9) Correspondence to be filed in an interference proceeding which 
consists of a preliminary statement under Sec. 1.621; a transcript of a 
deposition under Sec. 1.676 or of interrogatories, or cross-
interrogatories; or an evidentiary record and exhibits under Sec. 1.653.
    (e) Interruptions in U.S. Postal Service. If interruptions or 
emergencies in the United States Postal Service which have been so 
designated by the Director occur, the Patent and Trademark Office will 
consider as filed on a particular date in the Office any correspondence 
which is:
    (1) Promptly filed after the ending of the designated interruption 
or emergency; and
    (2) Accompanied by a statement indicating that such correspondence 
would have been filed on that particular date if it were not for the 
designated interruption or emergency in the United States Postal 
Service.
    (f) Facsimile transmission of a patent application under Sec. 
1.53(d). In the event that the Office has no evidence of receipt of an 
application under Sec. 1.53(d) (a continued prosecution application) 
transmitted to the Office by facsimile transmission, the party who 
transmitted the application under Sec. 1.53(d) may petition the Director 
to accord the application under Sec. 1.53(d) a filing date as of the 
date the application under Sec. 1.53(d) is shown to have been 
transmitted to and received in the Office,
    (1) Provided that the party who transmitted such application under 
Sec. 1.53(d):
    (i) Informs the Office of the previous transmission of the 
application under Sec. 1.53(d) promptly after becoming aware that the 
Office has no evidence of receipt of the application under Sec. 1.53(d);
    (ii) Supplies an additional copy of the previously transmitted 
application under Sec. 1.53(d); and
    (iii) Includes a statement which attests on a personal knowledge 
basis or to the satisfaction of the Director to the previous 
transmission of the application under Sec. 1.53(d) and is accompanied by 
a copy of the sending unit's report confirming transmission of the

[[Page 18]]

application under Sec. 1.53(d) or evidence that came into being after 
the complete transmission and within one business day of the complete 
transmission of the application under Sec. 1.53(d).
    (2) The Office may require additional evidence to determine if the 
application under Sec. 1.53(d) was transmitted to and received in the 
Office on the date in question.

[58 FR 54501, Oct. 22, 1993; 58 FR 64154, Dec. 6, 1993; 61 FR 56447, 
Nov. 1, 1996; 62 FR 53180, Oct. 10, 1997; 64 FR 48917, Sept. 8, 1999; 65 
FR 54657, Sept. 8, 2000; 65 FR 76772, Dec. 7, 2000; 68 FR 14336, Mar. 
25, 2003]