U.S. federal trademark · Serial No. 87203883 · Reg. No. 5308179
A transmitter that is worn by a person and is automatically water-activated if the person is submerged in water; Water-activated transmitter that begins to transmit at the 418Mhz frequency; Receivers that will pick-up the 418Mhz transmission and sound an alert when the transmission is received
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.