Patent Public Search (PPUBs) Maintenance

The USPTO will perform routine maintenance on PPUBs beginning at 11:59 p.m. ET on Thursday, June 18 and ending at 1 a.m. ET on Friday, June 19.

During this maintenance period, PPUBs will be available. 

To avoid any potential impact, users should exit PPUBS by 11:59 p.m. ET Thursday, before the maintenance period starts, and then restart PPUBS after it has been completed.