Patents Assigned to Cube Root, Inc.
  • Device for the indication of elapsed time
    Patent number: 7333398
    Abstract: A device for indicating elapsed time by way of the state of indicators is disclosed, such indicators being arranged in at least four groups such that the first two groups taken together indicate elapsed hours and the second two groups taken together indicate elapsed minutes. The indicators are switchable between a first and second state, such as illuminated or not illuminated. The number of indicators in a first state, such as illuminated, indicate the value of a digit.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: February 19, 2008
    Assignee: Cube Root, Inc.
    Inventors: James S. Thompson, Robert Sloan