Patents by Inventor Friedrich Gloeckle

Friedrich Gloeckle 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).

  • Fastener for unperforated written matter
    Patent number: 4904104
    Abstract: A clamping folder for unperforated written material containing a rear folder cover (14), which is connected using a folded back (13) with a narrow strip (17), to which is welded a front sheet made from transparent or translucent plastic. A clip (16) is used for securing the written matter and is secured against removal in that it engages on one edge (19) of the folder. Edge (19) can e.g. be formed by a slot (15). The engagement of clip (16) for preventing removal can take place on both the front and rear sides.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: February 27, 1990
    Assignee: Hetzel & Co.
    Inventor: Friedrich Gloeckle