Folding step stool
US6427805B1 · kind B1 · utility
54Cited by
15References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A foldable step steel (10) includes a frame 12 having front and rear legs (14, 16) and top, middle, and bottom steps (34, 36, 38). A central step link (40) is coupled to the rear portion of each step (34, 36, 38) to support the steps when step stool (10) is unfolded and to control pivoting movement of the steps relative to front leg (14) during folding of step stool (10). A releasable latch (22) is coupled to a rear portion of top step (34) and configured to engage an upper cross strut (180) included in rear leg (16) to retain step stool (10) in an unfolded use position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.