37 CFR 4.5: Notice by Publication
Taken from the Ninth Edition of the MPEP, Revision 08.2017, Last Revised in January 2018
4.5 Notice by Publication.
If the copy of the complaint that is mailed to the invention promoter is returned undelivered, then the Office will publish a Notice of Complaint Received in the Official Gazette, the Federal Register, or on the Office’s Internet home page. The invention promoter will be given 30 days from such notice to submit a reply to the complaint. If the Office does not receive a reply from the invention promoter within 30 days, the complaint alone will become publicly available.
[Added, 65 FR 3127, Jan. 20, 2000, effective Jan. 28, 2000]