When a notice sent by the Office to any registrant or applicant is returned to the Office undelivered, including notification to the Office of non-delivery in paper or electronic form, additional notice may be given by publication in the Official Gazette.
[81 FR 69975, Oct. 7, 2016]
source: 30 FR 13193, Oct. 16, 1965, unless otherwise noted.
cite as: 37 CFR 2.118