37 CFR §41.109

1. (a)Request for access or copies. Any request from a party for access to or copies of Office records directly related to a contested case must be filed with the Board. The request must precisely identify the records and in the case of copies include the appropriate fee set under § 1.19(b) of this title.
2. (b)Authorization of access and copies. Access and copies will ordinarily only be authorized for the following records:
   1. (1)The application file for an involved patent;
   2. (2)An involved application; and
   3. (3)An application for which a party has been accorded benefit under subpart E of this part.
3. (c)Missing or incomplete copies. If a party does not receive a complete copy of a record within 21 days of the authorization, the party must promptly notify the Board.