11.42—Service of papers.
(a)
All papers other than a complaint shall be served on a respondent who is represented by an attorney by:
(2)
Mailing a copy of the paper by first-class mail, “Express Mail,” or other delivery service to the attorney at the address provided by the attorney under § 11.40(a)(1); or
(b)
All papers other than a complaint shall be served on a respondent who is not represented by an attorney by:
(2)
Mailing a copy of the paper by first-class mail, “Express Mail,” or other delivery service to the respondent at the address to which a complaint may be served or such other address as may be designated in writing by the respondent; or
(c)
A respondent shall serve on the representative for the OED Director one copy of each paper filed with the hearing officer or the OED Director. A paper may be served on the representative for the OED Director by:
(2)
Mailing a copy of the paper by first-class mail, “Express Mail,” or other delivery service to an address designated in writing by the representative; or
(d)
Each paper filed in a disciplinary proceeding shall contain therein a certificate of service indicating:
(e)
The hearing officer or the USPTO Director may require that a paper be served by hand or by “Express Mail.”
(f)
Service by mail is completed when the paper mailed in the United States is placed into the custody of the U.S. Postal Service.