Patents by Inventor Erdman Charles A.

Erdman Charles A. 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).

  • Marker holder clip
    Patent number: 4186405
    Abstract: An instrument marker holder clip is provided for positioning and retaining an instrument marker of the type having a hinged member adapted to engage and lock against a portion of the marker body. The clip comprises an elongated band with a decreased width portion formed therein between the forward and rearward band ends. The hinged member of the marker is locked around this decreased width portion and reliably positioned against the edge features thereof.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: January 29, 1980
    Assignee: Graphic Controls Corporation
    Inventors: Joseph Pelensky, Erdman Charles A.