Patents by Inventor Harshadrai D. Sheth

Harshadrai D. Sheth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electronic hour glass clock
    Patent number: 4030285
    Abstract: An electronic clock has a display which simulates the operation of one or more hour glasses. The hour glass display is simulated by the use of visual display elements, such as lights, which are made to appear to pass from the top portion of the hour glass display into the bottom portion of the hour glass display with the passage of time. Means are provided for resetting the hour glass display to put all of the display elements in their original condition and also for cascading multiple hour glass displays to give a visual indication of hours and minutes of time.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: June 21, 1977
    Inventor: Harshadrai D. Sheth
  • Electronic hour glass clock
    Patent number: D244835
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: June 28, 1977
    Inventor: Harshadrai D. Sheth