Patents by Inventor Darby R. Johns

Darby R. Johns 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).

  • Paper binder for folders
    Patent number: 5405209
    Abstract: A paper binder for folders, the binder comprising a U shaped loop (2) to be attached to the folder (1) by a clip (6). The loop is in two parts, one part (4) being rotatable in the clip, and the other part (3) non-rotatable in the clip. The two parts are releasably attachable to each other to allow sheets of paper to be placed on the non-rotatable part.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: April 11, 1995
    Inventors: Darby R. Johns, Yvonne D. Johns