Patents by Inventor Walter W. O'Brien

Walter W. O'Brien 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).

  • Book binder and display easel
    Patent number: 4609206
    Abstract: A book binder which has a cover, convertible to an easel having primary utility for instruction purposes. The book binder is characterized by a combined folding characteristic in the cover together with vertebrate page retainer and anchor hinge therefore. The anchor hinge is offset from the spine of the book and defines an extension strut to limit the angular relation of top and bottom segments of the cover.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: September 2, 1986
    Inventor: Walter W. O'Brien