Patents Assigned to Joseph L. Moore
  • Patent number: 3933222
    Abstract: A ladder having an adjustable extension enabling it to be positioned stably on uneven ground. The extension is telescopingly mounted on the outside of one leg of the ladder, and is slidable relative to the ladder leg in the longitudinal direction. Its range of movement is not limited by the ladder rungs. Locking means are selectively engageable in a series of holes to hold the extension in desired position.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: January 20, 1976
    Assignees: James E. Jenkins, Joseph L. Moore, Coba C. Craig
    Inventor: Coba C. Craig, Jr.