Patents by Inventor Barbara E. Bell

Barbara E. Bell 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: 4432460
    Abstract: A display board for receiving and holding cards or sheets of paper or the like so that information thereon is visible includes a rectangular front wall which is transparent, a rectangular back wall which is opaque and spacing strips between the walls. The spacing strips maintain the walls in spaced relationship and define a plurality of rectangular compartments between the walls. The back wall has slots located at the top of each compartment for insertion and removal of cards. The spacing strips and slots are shaped so that the cards can be removed, but can not be inadvertently spilled.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: February 21, 1984
    Inventor: Barbara E. Bell