Special PTO mail department numbers should be used to allow forwarding of
particular types of mail to the appropriate areas as quickly as possible. Such
mail is forwarded directly to the appropriate area without being opened. Only
the specified type of document should be placed in an envelope addressed to one
of these special departments. If any documents other than the specified type
identified for each department are addressed to that department, they will be
significantly delayed in reaching the appropriate were for which they are
   The following special departments should be used only for their specified
purpose. Address mail as follows:

                        Commissioner of Patents and Trademarks
                        Washington, D.C. 20231

   Box 3                Mail for the Office of Personnel from NFC
   Box 4                Mail for the Assistant Commissioner for External
                        Affairs and the Office of Legislation and
                        International Affairs.
   Box 5                "No Fee" mail related to trademarks.
   Box 6                Mail for the Office of Procurement
   Box 7                Reissue applications for patents involved in litigation
                        and subsequently filed related papers.
   Box 8                All papers for the Office of the Solicitor except
                        communications relating to pending litigation; papers
                        relating to pending litigation shall be mailed only to
                        Office of the Solicitor, P.O. Box 15667, Arlington,
                        Va. 22215
   Box 9                Coupon orders for U.S. patent and trademark copies.
   Box 10               Orders for certified copies of PTO documents.
   Box 11               Electronic Ordering Service (EOS).
   Box 12               Contributions to the Examiner Education Program.
   Box 13               Mail for the Employee and Labor Relations Division.
   Box 14               Mail directed to the APS Contracts Office.
   Box 15               Mail for the Advisory Commission on Patent Law Reform.
   Box 16               Deposit Account Replenishment Checks
   Box 17               Invoices directed to the Office of Finance.
   Box 171              Vacancy Announcement Applications.
   Box 313b             Petitions under 37 CFR 1.313(b) to withdraw a patent
                        application from issue after payment of the issue
                        fee and any papers associated with the petition,
                        including papers necessary for filing a continuing
   Box AF               Expedited procedure for processing amendments and other
                        responses after final rejection.
   Box Assignment       All assignment documents except those filed with new
   Box DAC              Petitions decided by the Office of Petitions including
                        petitions to revive and petitions to accept late
                        payment of issue fees or maintenance fees.
   Box DD               Disclosure Documents or material related to the
                        Disclosure Document Program.
   Box EEO              Mail for the Office of Equal Employment Programs.
   Box FWC              Requests for File Wrapper Continuation Applications
                        (under 37 CFR 1.62)
   Box Interference     Communications relating to interferences and
                        applications and patents involved in interference.
   Box Issue Fee        All communications following the receipt of a PTOL-85.
                        "Notice of Allowance and Issue Fee Due," and prior to
                        the issuance of a patent should be addressed to Box
                        Issue Fee, unless advised to the contrary. Assignments
                        are the exception. Assignments should be submitted in
                        a separate envelope and not be sent to Box Issue Fee.
   Box ITU              All intent to use documents, excluding the initial
                        application and amendments to allege use.
   Box M. Fee           Correspondence related to a patent that is subject to
                        the payment of a maintenance fee.
   Box MPEP             Submissions concerning the Manual of Patent Examining
   Box Non-Fee-
   Amendment            Non-fee amendments to patent applications. (Use Box AF
                        for responses after final rejection).
   Box OED              Mail for the Office of Enrollment and Discipline
   Box Patent
   Application          New patent application and associated papers and fees.
   Box Trademark
   APPLICATION          New trademark application and associated papers and
                        application fees.
   Box Pat. Ext.        Applications for patent term extension.
   Box PCT              Mail related to applications filed under the Patent
                        Cooperation Treaty.
   Box Reexam           Requests for Reexamination for original request papers
   Box Reconstruction   Correspondence pertaining to the reconstruction of lost
                        patent files.
   Box Sequence         Submission of diskette for biotechnical application.
   Box SN               For fee and petitions under 37 CFR 1.182 to obtain date
                        received and/or serial number for patent
                        applications prior to the Office's standard
                        notification (return postcard or the official "Filing
                        Receipt," "Notice to File Missing Parts," or "Notice of
                        Incomplete Application").