Patent · US Expired

Free access type floor

US4736555A · kind A · utility

53Cited by
7References
35Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 1986
Grant dateApr 12, 1988
Priority date
Expiry dateMay 20, 2006

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04F15/02494
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A free access type floor comprising a plurality of floor boards arranged on one and the same plane in a closely connected manner to form a secondary floor, engaging members provided at at least each corner of each of said floor boards, and support members provided with floor board-engaging means, which are adjustable in height, for detachably engaging with said adjacent engaging members of adjacent floor boards on one and the same plane to support said floor boards in a closely connected manner, and a method for installing the same.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.