How do I request copies of patent assignment records?

To request copies of patent assignment records, follow these steps:

1. For records after May 1, 1957: Contact the USPTO and pay the fee set forth in 37 CFR 1.19.
2. For records before May 1, 1957: Contact the National Archives and Records Administration (NARA) directly.
3. For recent records: Check the USPTO website for online availability.

When requesting a copy, the MPEP advises: “An order for a copy of an assignment or other document should identify the reel and frame number where the assignment or document is recorded.” Failure to provide this information may result in additional charges.