Patents by Inventor Emanuel Wolff

Emanuel Wolff 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).

  • Elapsed time reminder with conversion of calendar days into elapsed time
    Patent number: 4005571
    Abstract: An elapsed time display and reminder device that is manually adjustable by the user to select a time in the future that may be many days in advance of the present, and to provide a calibrated countdown display of the progressively diminishing time interval until the selected future time is reached. In a preferred device, the user enters the present time and the future time in calendar form as a month and day of the month, and the device automatically converts this future calendar date less the present date, into an elapsed time interval as a number of days.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: February 1, 1977
    Inventor: Emanuel Wolff