MPEP § 2764 — Express Withdrawal of Application for Extension of Patent Term (Annotated Rules)

§2764 Express Withdrawal of Application for Extension of Patent Term

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 2764, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Express Withdrawal of Application for Extension of Patent Term

This section addresses Express Withdrawal of Application for Extension of Patent Term. Primary authority: 37 CFR 1.750, 37 CFR 1.20(j), and 37 CFR 1.770. Contains: 1 requirement, 1 prohibition, 1 permission, and 2 other statements.

Key Rules

Topic

Filing, Search & Examination Fees

5 rules
StatutoryPermittedAlways
[mpep-2764-88f8850b1a941cfbc2a942e6]
Application for Extension Can Be Withdrawn Before Determination
Note:
An application for extending a patent term can be withdrawn before a decision is made by filing a signed declaration with the Office.

An application for extension of patent term may be expressly withdrawn before a determination is made pursuant to § 1.750 by filing in the Office a written declaration of withdrawal signed by the owner of record of the patent or its agent. An application may not be expressly withdrawn after the date permitted for reply to the final determination on the application. An express withdrawal pursuant to this section is effective when acknowledged in writing by the Office. The filing of an express withdrawal pursuant to this section and its acceptance by the Office does not entitle applicant to a refund of the filing fee (§ 1.20(j)) or any portion thereof.

Jump to MPEP Source · 37 CFR 1.750Filing, Search & Examination FeesPost-Issuance & Maintenance FeesFee Requirements
StatutoryProhibitedAlways
[mpep-2764-76c25577fb7995cd50b8bf4e]
Application Withdrawal After Final Determination Not Allowed
Note:
An application for extension of patent term cannot be withdrawn after the deadline to respond to the final determination on the application.

An application for extension of patent term may be expressly withdrawn before a determination is made pursuant to § 1.750 by filing in the Office a written declaration of withdrawal signed by the owner of record of the patent or its agent. An application may not be expressly withdrawn after the date permitted for reply to the final determination on the application. An express withdrawal pursuant to this section is effective when acknowledged in writing by the Office. The filing of an express withdrawal pursuant to this section and its acceptance by the Office does not entitle applicant to a refund of the filing fee (§ 1.20(j)) or any portion thereof.

Jump to MPEP Source · 37 CFR 1.750Filing, Search & Examination FeesPost-Issuance & Maintenance FeesFee Requirements
StatutoryInformativeAlways
[mpep-2764-a438c6fe527d9bff2436ec8c]
Express Withdrawal of Application for Extension of Patent Term Must Be Acknowledged in Writing by Office
Note:
An application for extension of patent term can be withdrawn before a determination is made if acknowledged in writing by the Office.

An application for extension of patent term may be expressly withdrawn before a determination is made pursuant to § 1.750 by filing in the Office a written declaration of withdrawal signed by the owner of record of the patent or its agent. An application may not be expressly withdrawn after the date permitted for reply to the final determination on the application. An express withdrawal pursuant to this section is effective when acknowledged in writing by the Office. The filing of an express withdrawal pursuant to this section and its acceptance by the Office does not entitle applicant to a refund of the filing fee (§ 1.20(j)) or any portion thereof.

Jump to MPEP Source · 37 CFR 1.750Filing, Search & Examination FeesPost-Issuance & Maintenance FeesFee Requirements
StatutoryInformativeAlways
[mpep-2764-cb2c6836ad86025d17064dbf]
Express Withdrawal Does Not Entitle Refund of Filing Fee
Note:
An express withdrawal of an application for extension of patent term does not entitle the applicant to a refund of the filing fee or any portion thereof.

An application for extension of patent term may be expressly withdrawn before a determination is made pursuant to § 1.750 by filing in the Office a written declaration of withdrawal signed by the owner of record of the patent or its agent. An application may not be expressly withdrawn after the date permitted for reply to the final determination on the application. An express withdrawal pursuant to this section is effective when acknowledged in writing by the Office. The filing of an express withdrawal pursuant to this section and its acceptance by the Office does not entitle applicant to a refund of the filing fee (§ 1.20(j)) or any portion thereof.

Jump to MPEP Source · 37 CFR 1.750Filing, Search & Examination FeesPost-Issuance & Maintenance FeesFee Requirements
StatutoryRequiredAlways
[mpep-2764-6b80d2b936f683db84ea0b76]
Request for Withdrawal of Extension Term Must Be Filed Before Reply Due Date
Note:
A request to withdraw an application for extension of patent term must be submitted before the reply due date and accompanied by a petition fee.

Except for a request for withdrawal filed in response to a requirement for election, a request for withdrawal of an application for extension of patent term after a determination has been made pursuant to 37 CFR 1.750 must be submitted on or before the date permitted for reply to the final determination, and be accompanied by a petition under 37 CFR 1.182 with the appropriate petition filing fee.

Jump to MPEP Source · 37 CFR 1.750Filing, Search & Examination FeesFee RequirementsPetition Not Otherwise Provided For (37 CFR 1.182)

Citations

Primary topicCitation
Filing, Search & Examination Fees37 CFR § 1.182
Filing, Search & Examination Fees37 CFR § 1.20(j)
Filing, Search & Examination Fees37 CFR § 1.750

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31