Patents by Inventor Charles W. Buchanan

Charles W. Buchanan 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).

  • Picture frame
    Patent number: 4477990
    Abstract: A do-it-yourself picture frame includes a plurality of edge members, each having a circular or slot-like aperture proximate each end thereof, joined by a plurality of corner members. Each corner member includes first and second perpendicular channels for receiving the ends of adjacent edge members. Each channel is provided with a stop plate against which an end of an edge member may abut and an internally threaded projection which extends into an aperture in an edge member. A screw threadably engages the projection to secure the edge member in its channel.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: October 23, 1984
    Assignee: William Sornborger
    Inventor: Charles W. Buchanan
  • Corner bracket for picture frame or the like
    Patent number: D275251
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: August 28, 1984
    Assignee: William E. Sornborger
    Inventor: Charles W. Buchanan