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SECURITY SYSTEMS

  • US 20110057774A1
  • Filed: 09/01/2010
  • Published: 03/10/2011
  • Est. Priority Date: 04/19/2000
  • Status: Abandoned Application
First Claim
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1. An electronic lock box comprisinga chamber for housing a key, the chamber having a door, a latch mechanism being operable between an unlocked position in which access to the chamber is permitted through the door, and locked position in which access to the chamber through the door is blocked,a phone device connected to the chamber,a controller for coordinating signal input through the phone device with operation of the latch mechanism, the controller being programmed to receive entry permission entry permission instructions from a remote master phone, the entry permission instructions configured to switch the latch mechanism to the unlocked position when the phone device receives a phone call from a third party phone.

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