The national trademark examination is unified in Beijing, so the speed is relatively slow, generally taking more than one year. In practice, many applicants began to use the Notice of Acceptance of Trademark Registration to mark trademarks with TM, which is allowed. However, this trademark may still fail in the subsequent review. If it fails in the subsequent review, the trademark will be invalid. Therefore, "effective trademark registration" refers to a trademark that has been applied for and passed the examination and finally obtained a trademark registration certificate. This trademark has exclusive rights, and no one else can imitate it.