US Patent 10108898 Package tracking label having activation and deactivation tabs

A method of tracking a package. The method includes applying a package label to a package in which the package label comprises an antenna circuit, an activation tab configured to activate the antenna circuit, and a deactivation tab configured to deactivate the antenna circuit. The method also includes activating the antenna circuit by removing the activation tab and periodically transmitting a signal by the antenna circuit upon activation. The signal comprises information that identifies the package. The method also includes receiving the signal and using the information in the signal to track a location of the package.