Patents by Inventor James W. Annestedt

James W. Annestedt 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).

  • Spacer clip for chimney
    Patent number: 5468026
    Abstract: A spacer clip for maintaining the coaxial spacing of the walls in a multiple wall chimney. A plurality of spacer clips are circumferentially positioned within the annulus between the walls. The clip attaches to the outer wall and includes a biasing arm which engages the inner wall to maintain the spacing between the walls. The biasing arm of the clips may be retracted to facilitate insertion or removal of the inner wall from within the outer wall.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: November 21, 1995
    Assignee: American Metal Products Company
    Inventor: James W. Annestedt
  • Sign support stand
    Patent number: D277584
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: February 12, 1985
    Inventor: James W. Annestedt