What is the date of first use in commerce?
This is the date on which the applicant first used the mark in commerce which might have resulted in commerce across state lines. Some examples of use in commerce across state lines include: placing a label with the mark on a product that could have potentially crossed state lines or advertising a product in a commercial using the mark that may be seen across state lines. If the specific date is unknown, the month and year or just the year may be entered.