Patent Public Search (PPUBs) Maintenance

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Completed

The USPTO will perform routine maintenance on PPUBs beginning at 11:59 p.m. ET on Friday, April 10 and ending at 1 a.m. ET on Saturday, April 11.  

During the maintenance period, Patent Public Search will be unavailable.

Last updated: Saturday, Apr 11, 2026 at 1:00 AM ET
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Unless otherwise indicated, all systems should be operating normally.

Issues impacting remote employees are available on the Internal system status platform.

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