Patents by Inventor William C. Looper

William C. Looper 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).

  • Window lock apparatus
    Patent number: 4943096
    Abstract: A lock apparatus (10) for immobilizing a lower window sash (101) relative to a window sill (102) wherein the apparatus (10) comprises a pivoted bracket element (18) and a stationary bracket element (21) attached to the window sill (102) and window sash (101) and having aligned latch elements (19) and (22) which are dimensioned to receive an elongated bolt member (30) to lock the window sash (101) relative to the window sill (102).
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: July 24, 1990
    Inventor: William C. Looper