37 C.F.R. § 1.482
International preliminary examination and processing fees
(a) The following fees and charges for international preliminary examination are established by the director under the authority of 35 U.S.C. 376:
(1) The following preliminary examination fee is due on filing the demand:
(i) If an international search fee as set forth in § 1.445(a)(2) has been paid on the international application to the United States Patent and Trademark Office as an International Searching Authority:
| By a micro entity (§ 1.29) | $141.00 |
| By a small entity (§ 1.27(a)) | 282.00 |
| By other than a small or micro entity | 705.00 |
(ii) If the International Searching Authority for the international application was an authority other than the United States Patent and Trademark Office:
| By a micro entity (§ 1.29) | $176.00 |
| By a small entity (§ 1.27(a)) | 352.00 |
| By other than a small or micro entity | 880.00 |
(2) An additional preliminary examination fee when required, per additional invention:
| By a micro entity (§ 1.29) | $141.00 |
| By a small entity (§ 1.27(a)) | 282.00 |
| By other than a small or micro entity | 705.00 |
(b) The handling fee is due on filing the demand and shall be as prescribed in PCT Rule 57.
(c) Late furnishing fee for providing a sequence listing in response to an invitation under PCT Rule 13ter:
| By a micro entity (§ 1.29) | $69.00 |
| By a small entity (§ 1.27(a)) | 138.00 |
| By other than a small or micro entity | 345.00 |