Is there a limit to the number of interim extensions an applicant can receive?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-30 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. Yes, there is a general limit to the number of interim extensions an applicant can receive under 35 U.S.C. 156(d)(5) . According to MPEP 2754.02 : “An applicant is generally limited to four one-year interim extensions.” This limitation means that patent holders typically have up to four years of interim extensions to obtain product approval before they may need to explore other options for maintaining their patent rights. However, it’s important to note that this is a general rule, and specific circumstances may affect the number of extensions granted. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Interim Extension of Patent Term Under 35 U.S.C. 156(d)(5) MPEP 2754.02 Patent Interim Extension Limit MPEP 2754.02 Interim Extension Terminates After Product Approval But May Be Extended With Additional Information MPEP 2754.02 Permitted First Interim Extension Application Must Be Filed Using Patent Center MPEP 2754.02 Required Subsequent Interim Extensions Must Be Filed During Specific Window MPEP 2754.02 Required Additional Information for Patent Term Extension Required Within Sixty Days MPEP 2754.02 Required Interim Extension for Unapproved Product MPEP 2754.02 Required Complete Application Requirement for Filing Date MPEP 2754 60-Day Filing Period for Complete Application MPEP 2754 Required Filing Date Established by Meeting Specific Application Requirements MPEP 2754 Other Related FAQs 5 FAQs Collapse What additional information is required when submitting an application for patent term extension under 35 U.S.C. 156(d)(1) after an interim extension? What is the filing window for a first application for interim extension under 35 U.S.C. 156(d)(5)? When should su...