37 CFR § 1.221 - Voluntary publication or republication of patent application publication.
(a) Any request for publication of an application filed before, but pending on, November 29, 2000, and any request for republication of an application previously published under § 1.211, must include a copy of the application in compliance with the Office electronic filing system requirements and be accompanied by the publication fee set forth in § 1.18(d) and the processing fee set forth in § 1.17(i). If the request does not comply with the requirements of this paragraph or the copy of the application does not comply with the Office electronic filing system requirements, the Office will not publish the application and will refund the publication fee.
(b) The Office will grant a request for a corrected or revised patent application publication other than as provided in paragraph (a) of this section only when the Office makes a material mistake which is apparent from Office records. Any request for a corrected or revised patent application publication other than as provided in paragraph (a) of this section must be filed within two months from the date of the patent application publication. This period is not extendable.