When does a withdrawal of a patent term extension application become effective?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-29 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. A withdrawal of a patent term extension application becomes effective when it is acknowledged in writing by the USPTO. According to MPEP 2764 : “An express withdrawal pursuant to this section is effective when acknowledged in writing by the Office.” This means that simply submitting a withdrawal request is not sufficient. The withdrawal only takes effect after the USPTO has reviewed your request and provided written confirmation of its acceptance. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Express Withdrawal of Application for Extension of Patent Term Must Be Acknowledged in Writing by Office MPEP 2764 Application for Extension Can Be Withdrawn Before Determination MPEP 2764 Permitted Express Withdrawal Does Not Entitle Refund of Filing Fee MPEP 2764 Request for Withdrawal of Extension Term Must Be Filed Before Reply Due Date MPEP 2764 Required Application Withdrawal After Final Determination Not Allowed MPEP 2764 Prohibited Publication Fee Refund If Application Does Not Meet Requirements MPEP 1130 Petition for Abandonment After Issue Fee Payment MPEP 1002.02(b) Application Publication Fee Refunded If Noncompliant MPEP 1133 Request to Withdraw Patent Applications Before Issue Fee Payment MPEP 1002.02(b) Petitions to Withdraw Issued Patents After Fee Payment MPEP 1002.02(b) Other Related FAQs 5 FAQs Collapse Is there a deadline for withdrawing a patent term extension application? How can I withdraw my application for patent term extension? Can I get a refund if I withdraw my patent term extension application? What&#8217;s the difference between withdrawing a patent term extension application and responding to an election requirement? How does submitting a su...