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Method and system for capturing in-service date information

  • US 7,047,565 B2
  • Filed: 10/31/2001
  • Issued: 05/16/2006
  • Est. Priority Date: 10/31/2001
  • Status: Active Grant
First Claim
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1. A method for recording an in-service date associated with an electronic device, comprising:

  • establishing an initial valid date as the current date for the device and maintaining the current date thereafter;

    responsive to determining that the device is in service and that no in service date has been stored previously, storing the current date as the in-service date; and

    performing an action selected from;

    periodically monitoring the current date of the device to determine if the valid date has been altered after storing the in-service date; and

    obtaining the in-service date from the non-volatile device with an external readout machine connected to the non-volatile storage;

    responsive to determining that the initial valid date has not been established, generating a valid date error message before transitioning to a normal operating mode in which the user is enabled to operate the device; and

    responsive to determining that the in service date is after the current date, issuing an in service data error message before transitioning the system to a normal operating mode.

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