Location monitoring system
Patent 5245314 Issued on September 14, 1993. Estimated Expiration Date: 
September 14, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 14, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1993436 2810068 3786406 3868573 3902118 Wallet guard Device for monitoring physical activity of persons Switch means for radio alarm device Garbage can alarm Wireless alarm system InventorApplicationNo. 777189 filed on 09/18/1985US Classes:340/539.13, Tracking location (e.g., GPS, etc.)340/573.1, Human or animal340/686.6Proximity or distanceExaminersPrimary: Hellner, MarkAttorney, Agent or FirmInternational ClassG08B 001/08AbstractA location monitoring system is provided having a radio frequency transmitter for a person or object and radio frequency receiver for someone to monitor movement of said person or object, said receiver sounding an alarm at a predetermined time after failure to receive a signal. The transmitter is made having an intermittent transmitted signal and the receiver is made having an off-timer to coordinate with said intermittent signal, said off times saving battery power. The radio frequency receiver has an electronic switching means controlled by said radio frequency transmitter for sounding an alarm. An antenna is located in part of the carrying strap of said transmitter. The radio frequency transmitter can have various devices for sounding the alarm. | |
