Patents by Inventor Robert F. Jackson, Sr.

Robert F. Jackson, Sr. 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).

  • Recess size determining gauge
    Patent number: D318242
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: July 16, 1991
    Inventor: Robert F. Jackson, Sr.
  • Bolt head and nut sizing gauge
    Patent number: D319404
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: August 27, 1991
    Inventor: Robert F. Jackson, Sr.