What is the purpose of the file wrapper in a patent application?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-10 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 file wrapper, also known as the prosecution history, serves several important purposes in a patent application: It contains a complete record of all proceedings in the USPTO related to the application. It provides a chronological history of the examination process. It includes all official correspondence between the applicant and the USPTO. It is used to interpret the claims and determine the scope of the patent. As stated in MPEP 719 : “The folder in which the U.S. Patent and Trademark Office maintains the application papers is referred to as a file wrapper.” This file wrapper is crucial for understanding the evolution of the patent application and can be instrumental in potential future legal proceedings. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Notations Required for Priority Claims MPEP 719 Papers Entered in File Wrapper Must Be Returned MPEP 1003 Patent Application Confidentiality Requirement MPEP 101 Patent Application Confidentiality Requirement MPEP 101 Required Patent Application Publication Timing and Conditions MPEP 101 Required Director’s Decision on Patent Application Release Final and Unreviewable MPEP 101 Required Applicant Can Withdraw Patent Application Request At Any Time MPEP 101 Permitted Access to Published Abandoned Patent Application Files MPEP 101 Required Access to Published Patent Application Files Is Allowed Upon Request MPEP 101 Required Patent Application Confidentiality Requirement MPEP 101 Permitted Other Related FAQs 5 FAQs Collapse How can an applicant obtain copies of papers submitted to the USPTO? How is the classification of a new patent application determined? What happens when a new patent application is received ...