How do I properly identify a foreign application when claiming priority in a U.S. patent application?

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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. When claiming priority to a foreign application in a U.S. patent application, it’s crucial to provide accurate identification information. According to MPEP 214.01 , you must include the following details: The application number of the foreign application The country or intellectual property authority where the foreign application was filed The day, month, and year of filing of the foreign application The MPEP states: ‘The claim for priority must identify the foreign application for which priority is claimed by specifying the application number, country (or intellectual property authority), day, month, and year of its filing.’ Additionally, if you’re submitting a certified copy of the foreign application, ensure that it matches the identification information provided in your priority claim. Accurate identification is essential for establishing your priority rights and avoiding potential issues during examination or litigation. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Claim for Priority Must Identify Foreign Application MPEP 214.01 Required Claim for Foreign Priority Must Be Filed Before Patent Grant MPEP 214 Claim for Foreign Priority Must Be Timely Filed MPEP 214.01 Claim for Foreign Priority Must Be Filed Within Twelve Months MPEP 214 Claim for Priority Must Be on Application Data Sheet MPEP 214.01 Claim for Priority Must Be Made During Pendency MPEP 214.01 Required Oath Must Identify Foreign Priority Applications MPEP 214.01 Required Claim for Priority May Be Made in Continuing Application MPEP 214 Permitted Priority Claim for Foreign Application Not Required for Restoration Petition MPEP 213 Late Foreign Priority Claim Without Petition MPEP 214.03 Per...