Patents by Inventor Glenn N. Christoffel

Glenn N. Christoffel 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: 5944352
    Abstract: A notebook binder device having a first and second member. The first member having a front cover section. The front cover section having a central opening defining a window. The first member includes a connecting fold. The second member having a transparent, see through, cover and a back. When the first and second members are connected the back is viewed through the window and the transparent middle cover section. The second member includes a connecting fold suitable for connecting the connecting fold of the first member and for connecting the transparent cover section. Rivets and other connecting devices are adapted to connect the first and second members. Additionally, the rivets include male and female paper holding members for holding papers between the front and back covers.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: August 31, 1999
    Inventors: Jimmy Crouch, Glenn N. Christoffel, Peter F. Lynch, Scott W. Osiecki