Patents by Inventor Carl H. Wamser

Carl H. Wamser 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).

  • Signs and displays having easily interchangeable information panels
    Patent number: 5809677
    Abstract: A sign wherein individual film panels bearing graphical information are interconnected as an uninterrupted web by way of interconnecting plastic zippers. The web, which is composed of a series of film panel transparencies, is wound and unwound from spaced apart rollers for presenting the individual panels for viewing through a window in a housing. The concept of releasably interconnecting film panels is also used in stationary signs such as menu boards in fast food restaurants to provide for easy interchange of the panels when it is desired to present different menu items and prices, for example.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: September 22, 1998
    Assignee: Everbrite, Inc.
    Inventors: Carl H. Wamser, Robert A. Karsten