Can documents be expunged from a patent application file?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-10

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, under certain circumstances, documents can be expunged from a patent application file. According to MPEP 719.01:

37 CFR 1.59 provides that certain documents may be expunged if they were unintentionally submitted or contain proprietary information which has not been made public and is not important to a decision of patentability.

However, this is an exception to the general rule that papers entered into the image file wrapper become a permanent part of the record. For more detailed information on the expungement process, refer to MPEP § 724.

Tags: expungement, patent application, Proprietary Information, USPTO