law.trademark-status
Verify a US trademark's LIVE/DEAD status, owner, and classes using its USPTO serial or registration number. Uses authoritative real-time USPTO data.
Instructions
Verify a US trademark by USPTO serial number (8 digits) or registration number: word mark, LIVE/DEAD status with detail and dates, current owner, mark type, and international classes covered. Authoritative real-time USPTO TSDR data — confirm a mark exists and is active instead of trusting model memory. Number lookup only (no text search).
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| serialNumber | No | 8-digit application serial number (XOR with registrationNumber). | |
| registrationNumber | No | US registration number, 6-8 digits (XOR with serialNumber). |