Patents by Inventor William Carlstrom

William Carlstrom 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).

  • Patent number: 4444321
    Abstract: A bracket structure for supporting a horizontal or vertical sheet-like member and adapted for attachment to a supporting apertured panel having a first U-shaped clip with two opposing spaced flat side walls joined by an integral end wall. A stem extends outwardly of the end wall which has a cylindrical slotted neck to define flexible spaced bifurcations. When the bifurcations are pressed together they define a round head which may enter an aperture in the supporting panel.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: April 24, 1984
    Inventor: William Carlstrom
  • Patent number: D266551
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: October 19, 1982
    Assignee: Lyle/Carlstrom Associates, Inc.
    Inventor: William Carlstrom
  • Patent number: RE32435
    Abstract: A bracket structure for supporting a horizontal or vertical sheet-like member and adapted for attachment to a supporting apertured panel having a first U-shaped clip with two opposing spaced flat side walls joined by an integral end wall. A stem extends outwardly of the end wall which has a cylindrical slotted neck to define flexible spaced bifurcations. When the bifurcations are pressed together they define a round head which may enter an aperture in the supporting panel.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: June 9, 1987
    Assignee: Lyle/Carlstrom Associates, Inc.
    Inventor: William Carlstrom
  • Patent number: D341819
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: November 30, 1993
    Assignee: Lyle/Carlstrom
    Inventor: William Carlstrom