Patents Assigned to Curoco
  • Stairway unit
    Patent number: 4004384
    Abstract: A stairway unit for a multi-level construction including briefly: a one-piece metal member forming both treads and risers, parallel metal stringer members each presenting a vertical planar side to the one-piece metal member; and the edges only of the one-piece metal member being connected to the stringers as by welding. No additional tread members are required and the stairway may be used as is, or with the addition of pads and carpeting to the treads and/or risers or with other suitable covers.
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: January 25, 1977
    Assignee: Curoco
    Inventor: Murray C. Hood