Patents by Inventor George J. Costa

George J. Costa 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).

  • Self leveling laser plumb assembly
    Patent number: 5537205
    Abstract: A self leveling laser plumb assembly having a battery powered laser unit, a laser unit mounting support, and at least three support legs secured to the bottom of a gimbal ring assembly. The top end of the laser unit mounting support removably receives the laser beam unit. The laser unit mounting support vertically aligns itself by gravity. This allows a beam of light from the laser unit to be directed upwardly to a surface where a predetermined spot can be marked.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: July 16, 1996
    Inventors: George J. Costa, Jeff J. Williams