Patents Assigned to Edwin H. Paul
  • Stairtread with positioning and locking mechanism
    Patent number: 5088248
    Abstract: A circular staircase tread (10), capable of being formed in one piece, the tread having a flexible stacking (18), positioning and locking mechanism which allows on-site adjustment of the angular positioning of the treads in relation to each other and the on site modification of the resulting staircase.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: February 18, 1992
    Assignees: Edwin H. Paul, James V. Leicht, Joseph P. Manna
    Inventor: Joseph P. Manna