Step stool
US6026933A · kind A · utility
57Cited by
4References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Sep 11, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C1/393
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A step stool comprising a frame having a front leg and a rear leg, a step having a top surface and a bottom surface and an opening in the top surface extending through to the bottom surface wherein the step is coupled to the front leg and coupled to the rear leg, and wherein there is a step blocker movable between an engaged position in which the blocker engages the frame and a retracted position in which the blocker does not engage the frame and an actuator grip to operate the block which grip is accessible from the top surface of the step through the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.