Patents by Inventor Denver L. Cogburn

Denver L. Cogburn 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).

  • Curtain rod clamp
    Patent number: D286978
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: December 2, 1986
    Inventor: Denver L. Cogburn
  • Combined hanger and pulley for cord
    Patent number: D348386
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: July 5, 1994
    Inventor: Denver L. Cogburn