Application formalities
Signature — Trademark Office Action Guide
Signature issues cover missing signatures, signatures by unauthorized persons, or mismatches between the signer and the applicant.
What the USPTO is saying
The application signature is missing, invalid, or was not signed by someone authorized to bind the applicant. The USPTO requires a proper verification.
Why this issue is raised
Signatures verify that the applicant authorized the filing and that statements in the application are true. Unauthorized signatures undermine application validity.
How applicants typically overcome it
- Submit a properly signed response or amendment with verification.
- Ensure the signer is authorized (owner, corporate officer, or U.S.-licensed attorney).
- Match the signature to the applicant name on record.
- For entity applicants, confirm the signer has legal authority to sign on behalf of the organization.
Related Office Action issues
Frequently asked questions
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