Patents by Inventor Donald W. Richter

Donald W. Richter 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).

  • Concealed fastener clip for building panels
    Patent number: 4143498
    Abstract: A concealed fastener clip for attaching a plurality of panels disposed in an edge-to-edge relationship to a support frame. The concealed fastener comprises a body portion of generally C-shaped cross section which generally follows the annular space between edges of adjacent panels. One edge of the body portion of the fastener comprises a standoff leg terminating in a lateral flange, and means are provided to secure the lateral flange to the support frame when the fastener is sandwiched between abutting panels.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: March 13, 1979
    Assignee: Armco Steel Corporation
    Inventors: Mulford Martin, Jr., Donald W. Richter