Patents Assigned to Vertiflex Company
  • Filing tray
    Patent number: D249048
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: August 22, 1978
    Assignee: The Vertiflex Company
    Inventors: Ronald Drell, Max I. Epstein
  • Writing board
    Patent number: D315366
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: March 12, 1991
    Assignee: Vertiflex Company
    Inventor: Randy S. Greenspahn
  • Combined writing board and holder
    Patent number: D316727
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: May 7, 1991
    Assignee: Vertiflex Company
    Inventor: Randy S. Greenspahn