Patent Center Maintenance

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The USPTO will perform a routine maintenance on the Patent Center from midnight-4 a.m. ET on Saturday, April 25.

During this maintenance period, Patent Center will be unavailable. Please Please refer to our Filing Documents during an Outage page for other alternative filing methods.

Last updated: Saturday, Apr 25, 2026 at 4:00 AM ET
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Unless otherwise indicated, all systems should be operating normally.

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