How is the filing date determined for Priority Mail Express® submissions to the USPTO?

The filing date for Priority Mail Express® submissions is typically determined by the “date accepted” on the Priority Mail Express® mailing label. According to MPEP 513: Office personnel will routinely look to the Priority Mail Express® mailing label, and stamp the “date accepted” or other official USPS notation as the filing date of the correspondence.…

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What should I do if there’s a discrepancy between the USPTO filing date and the Priority Mail Express® “date accepted”?

If there’s a discrepancy between the filing date accorded by the USPTO and the “date accepted” on the Priority Mail Express® mailing label, you can file a petition under 37 CFR 1.10(c). MPEP 513 states that such a petition should: Be filed promptly after becoming aware of the discrepancy Include evidence that the Priority Mail…

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