What is the recording date for a document at the USPTO Assignment Division?

The recording date for a document at the USPTO Assignment Division is determined as follows:

• It is the date when a document meeting all requirements is filed with the Office.
• Documents not complying with identification requirements (37 CFR 3.21) will not be recorded.
• Documents with other deficiencies (e.g., missing cover sheet or fee) will be returned for correction.
• If corrected and resubmitted within the specified time, the original receipt date may be considered the recording date.

According to 37 CFR 3.51: “The date of recording of a document is the date the document meeting the requirements for recording set forth in this part is filed in the Office.”