Patents by Inventor Mark T. Hersum

Mark T. Hersum 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).

  • Patent number: 5301106
    Abstract: Action item docketing device comprises a plurality of open action item receptacles. Each receptacle has an indicator, and a detector providing a presence signal responsive to an action item in the receptacle. The device display prompts the user to enter through a keypad item due dates for the corresponding receptacles. For a receptacle, due data signals representative of a future date for action with respect to an item are stored. For each receptacle in turn, the stored due data is compared with the current date. Responsive to coincidence of the current date with the stored due date, and to an item presence signal, an output item due signal causes the corresponding indicator to be in an item due state.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: April 5, 1994
    Inventor: Mark T. Hersum