Patents by Inventor Lawrence P. Brown

Lawrence P. Brown 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).

  • Thermal shutters
    Patent number: 4347887
    Abstract: An improved thermal shutter mountable to the interior or exterior of a structure at a window thereof comprised of one sheet of material bonded to itself at spaced intervals to form a double row of cells. The sheet may be movably mounted between a mount member and a weighted member with a drawstring extending from said weighted member through said sheet and through said mount member and attached at said mount member at the window of the structure or be directly fixedly attached to the structure or the window.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: September 7, 1982
    Inventor: Lawrence P. Brown