Patent ID: 7420456
Filing Date: 2008-09-02
Classification: E05B,G07C

Abstract:
1. A method of operating an electronic lock box system, said method comprising: (a) providing at least one electronic lock box having a secure compartment therein, a first computer circuit, a first memory circuit, a first device reader port, and a first data entry apparatus; (b) providing a processing apparatus having a second computer circuit, a second memory circuit, a second device reader port, and a second data entry apparatus; (c) providing a portable memory device having a third memory circuit, and at least one electrical conductor for communicating with a device reader port; (d) at said second computer circuit: (e) at said at least one electronic lock box: wherein said step of determining a second present epoch time involves adjusting said present epoch time, based upon an ambient temperature at said at least one electronic lock box.