American trademark renewal is the same as domestic trademark renewal once every 1 years, and the validity period after renewal is 1 years (the validity period of trademark registration and renewal registration before November 17, 1989 is 2 years). The time for submitting the renewal is from half a year before the expiration of the registration period to three months after the expiration of the registration period, and a fine will be paid for submitting the renewal within a three-month grace period after the expiration of the registration period.