Back to results
US 10,006,207 B2Granted
Open stair case with center uncut stringer
OwnerDean G Grommetinventor
Life of this patent
Estimating the term…
Abstract
An open staircase is provided comprising a flight of stair treads and an uncut stringer. The treads have free opposing ends positioned on the stringer in a stepped apart relationship relative to one another and each are fixed to the uncut stringer at a position along the horizontal length of the tread such that the tread is cantilevered from the stringer.
Claims5
A staircase comprising an uncut stringer and a plurality of steps comprising a tread having a horizontal length with a top and bottom planar surface and free opposing ends, said steps positioned on said stringer in a stepped apart relationship to one another, the improvement wherein:
- said tread is secured to said uncut stringer by means consisting essentially of a pin extending down from the bottom planar surface of said tread, said pin dimensioned to fit in an aperture on the tread-facing surface of said stringer, such that said tread contacts said stringer tread-facing surface and is cantilevered over said stringer without apparent visual means of support.
Dependencies are inferred from the claim text.