TMEP § 1110.02
Request to Divide Out One or More Entire Classes. With a request to divide out one or more entire classes from an application, only the fee for dividing the application (divisional fee), as set forth in 37 C.F.R. §2.6(a)(19), is required. 37 C.F.R. §2.87(b). A divisional fee is required for each new (child) application created by the division of the original (parent) application. No separate application filing fee is required for any new applications created.
Request to Divide Out Some, But Not All, of the Goods/Services in a Single Class. A request to divide out some, but not all, of the goods/services in a single class must be accompanied by both: (1) the divisional fee for each new (child) application created by the division of the original (parent) application (37 C.F.R. §2.6(a)(19) ); and (2) an application filing fee for each new separate application created by the division, as set forth in 37 C.F.R. §2.6(a)(1). 37 C.F.R. §2.87(b). The amount of the new application filing fee depends on the method used to file the original application and request to divide, and the filing fee in effect at the time of the request to divide, as follows:
The current fee schedule is available on the USPTO website at https://www.uspto.gov .
If the request to divide does not include the required fee(s), the ITU/Divisional Unit will notify the applicant in writing of the deficiency and grant the applicant time to submit the required fees. The fee(s) charged are the fees in effect at the time of the issuance of the deficiency letter. The applicant must submit the fee(s) within the time permitted, or the request to divide will be considered abandoned and the application will not be divided. If the applicant does not submit the necessary fees, the ITU/Divisional Unit will notify the applicant that the request to divide is considered abandoned.
See TMEP §1110.07 regarding the application of fees when an applicant files a request to divide in conjunction with a statement of use and/or request for an extension of time to file a statement of use, but submits insufficient fees.