Not normal. It is not normal for a trademark to be submitted for 50 days. If it is normal, you can receive the acceptance notice within one month from the date of filing the trademark application. If you haven't received it for several months, it means that the information submitted at the time of application is defective and needs to be corrected. After receiving the notice of correction, submit relevant materials to the Trademark Office as required, and it will be accepted normally in about 10 working days.