Patents by Inventor Else Hausmann

Else Hausmann 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).

  • Looseleaf binder
    Patent number: D247817
    Type: Grant
    Filed: August 20, 1976
    Date of Patent: May 2, 1978
    Inventors: Heinrich Hausmann, Else Hausmann