Electronic Filing System-Web (EFS-WEB) Maintenance
The USPTO will perform maintenance on EFS-Web beginning at 8 p.m., Monday, January 10 and ending at 10 p.m., Monday, January10 ET.
During this maintenance period, Fee Worksheets and Acknowledgement Receipts for submissions will not be generated.
There will be a delay before these documents will be available.
If you have questions, please contact the Patent Electronic Business Center (EBC) at (866)- 217-9197 during their operating hours of 6 a.m., to midnight, Monday - Friday ET, or email ebc@uspto.gov.
Last updated: Monday, Jan 10, 2022 at 4:34 AM ET
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