Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 25, 2007
Patent Application Number
11043714
Date Filed
January 26, 2005
Patent Primary Examiner
Patent abstract
A locator system includes a handheld unit for providing an interrogation signal. The handheld unit can be a handheld computer or PDA including an RF module. The interrogation signal is received by an RF tag. The RF tag can include a power source and a memory. The memory can store an indication of the date of installation of the battery. The tag unit can provide the indication to the handheld unit in response to the interrogation signal.
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