What should I do if the Priority Mail Express® label is illegible?

What should I do if the Priority Mail Express® label is illegible?

If the Priority Mail Express® label on your patent application package becomes illegible, it’s crucial to take immediate action to protect your filing date. The MPEP 513 provides guidance on this situation:

“If the Priority Mail Express® mailing label is not placed on the papers to be filed but on the outside of a package, the person mailing the papers should ensure that the Priority Mail Express® mailing label number is placed on each paper filed.”

To address an illegible label:

  • Immediately contact the USPTO to report the issue
  • Provide any available evidence of the mailing (e.g., receipt, tracking information)
  • Submit a petition to the USPTO explaining the circumstances
  • Include any supporting documentation to prove the mailing date

It’s best to prevent this issue by clearly writing the Priority Mail Express® label number on each document in the package before mailing. This ensures that even if the label becomes illegible, the USPTO can still identify and date your submission correctly.

To learn more:

Tags: Filing Date, Illegible Label, patent application, Priority Mail Express