When might the USPTO require earlier filing of priority claims and certified copies?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-09 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. The USPTO may require earlier filing of priority claims and certified copies in certain situations. According to 37 CFR 1.55(g)(2) , these situations include: When the application is involved in an interference or derivation proceeding When necessary to overcome the date of a reference relied upon by the examiner When deemed necessary by the examiner The MPEP explains that these requirements allow the USPTO to address priority issues promptly when they are relevant to ongoing proceedings or examination. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Priority Claim and Certified Copy Due for Design Application MPEP 213 Priority Claim and Certified Copy Must Be Furnished in Nonprovisional International Design Application MPEP 213 Required Unintentional Delay of Priority Claim Allowed MPEP 213 Priority Claim Must Be Made According to Hague Agreement MPEP 213 Permitted Claim for Priority and Certified Copy Required MPEP 213 Required Requirement for Filing Priority Claim and Foreign Application Copy MPEP 213 Required Priority Claim Must Be Filed Before Issue Fee MPEP 213 Required Time Period for Priority Claim Not Extendable MPEP 213 Required Examiner May Require Assignee Information MPEP 2005 Permitted Director May Require Proof of Unintentional Delay for Priority Restoration MPEP 213 Permitted Other Related FAQs 5 FAQs Collapse What is an inventor&#8217;s certificate and how does it relate to patent priority rights? What is an interim copy of a foreign priority document and when is it acceptable? What is the significance of the &#8216;time period set in 37 CFR 1.55&#8217; for filing priority claims? How does the USPTO determine which countries are eligible for pri...