Portable locating system
Patent 5389934 Issued on February 14, 1995. Estimated Expiration Date: 
June 21, 2013. 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.
June 21, 2013. 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 ReferencesMethod and apparatus for automatic distress call signal transmission Emergency vessel location system Cellular position locating system Patent #: 5043736 InventorAssigneeApplicationNo. 078637 filed on 06/21/1993US Classes:342/357.07, Tracking or monitoring (i.e., lost or stolen vehicles)342/357.09With transmission of location-indicative information to or from a remote stationExaminersPrimary: Hellner, MarkAttorney, Agent or FirmInternational ClassH04B 007/185AbstractA portable tracking system that includes one or more portable units for determining their respective locations and communicating it to another unit or to a remote telephone unit. Each unit includes a global positioning system GPS for determining latitude and longitude, a micro-computer, a cellular telephone, and a digital data to voice for converter and batteries. | |
