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Patent Public Search (PPUBs) Maintenance

Summary by uspto.gov
The USPTO will perform maintenance on PPUBs beginning at 11:59 p.m. ET on Friday, December 19 and ending at 1 a.m. ET on Saturday, December 20.  During this maintenance period, PPUBs will be unavailable.After the maintenance period, users need to clear cache and restart PPUBS.
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uspto.gov broke the news in on Friday, December 19, 2025.
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