Tri-foot, ladder and method
US10138682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2016 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G5/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ladder having a first rail having a bottom. The ladder having a second rail. The ladder having rungs attached to the first rail and second rail upon which a user climbs the ladder. The ladder comprises a ladder foot rotatably attached adjacent to the bottom of the first rail. The ladder foot having three distinct and different surfaces, with the first rail resting on one of the three surfaces at any one time the first rail is up right. The first rail changing to any of the three surfaces for the first rail to be upright upon by rotating the ladder foot. A method for placing a ladder. A ladder foot rotatably attached adjacent to a bottom of a first rail of a ladder. A method for making a ladder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.