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USPTO Systems Status and Availability

Sunday Mar 24, 2013

EFS-Web Maintenance

EFS-Web Maintenance

USPTO will perform maintenance on the Electronic Filing System (EFS-WEb) beginning at 4 a.m. and ending at 6 a.m. on Thursday, March 28. The following submission types will be unavailable in EFS-Web and EFS-Web Contingency during the maintenance:

  • 371 National Stage applications
  • Supplemental Examination proceedings
  • Follow-on submissions to an existing application including ePetitions.

EFS-Web Maintenance

USPTO will perform maintenance on the Electronic Filing System (EFS-WEb) beginning at 12:01 a.m. and ending at 6 a.m. on Saturday, March 30. The following submission types will be unavailable in EFS-Web and EFS-Web Contingency during the maintenance:

  • 371 National Stage applications
  • Supplemental Examination proceedings
  • Follow-on submissions to an existing application including ePetitions.

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