Patents by Inventor Eugene H. Spender, Jr.

Eugene H. Spender, Jr. 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).

  • Count down system for recording charts
    Patent number: 4925214
    Abstract: Signs or indicia are printed or otherwise formed at locations on the last portion of a recording strip that indicate the amount of recording that can occur after each location. The indication can be in the number of pages, length of paper or time.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: May 15, 1990
    Assignee: Hewlett-Packard Company
    Inventors: Donald R. Hazelton, Paul J. Latka, Joseph N. Lyons, Jr., Eugene H. Spender, Jr.