U.S. federal trademark · Serial No. 76187830
Two (2) or more aircraft flying on the same frequency is strictly forbidden at any flying sight, but it does happen This will help avoid that possibility It will identify the only person legally able to use that frequency by substituting the person's name for the frequency pin, thereby "locking the frequency" so as to prevent anyone else from using it
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.