37 CFR § 2.118 - Undelivered Office notices.

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§ 2.118 Undelivered Office notices.

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]