Block Storage Migration

until
Completed

The USPTO will perform a routine Block Storage Migration for the following databases from midnight-5:30 a.m. ET on Wednesday, May 20.

  • Assignments Center
  • Electronic System for Trademark Trials and Appeals (ESTTA)
  • Open Data Portal (ODP)
  • Patent Center
  • Patent Maintenance Fees Storefront
  • Patent Trial and Appeal Case Tracking System (P-TACTS)

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

Last updated: Wednesday, May 20, 2026 at 5:30 AM ET
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Past status updates:

- Completed
- In progress
- Planned maintenance
- Planned maintenance

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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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