Patents by Inventor Sheldon L. Bergen

Sheldon L. Bergen 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: D250801
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: January 16, 1979
    Inventors: Sheldon L. Bergen, Dale R. Botten