Invention Grant
- Patent Title: Stepless ladder assembly and methods of utilizing same
- Patent Title (中): 无阶梯组装及其使用方法
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Application No.: US14133633Application Date: 2013-12-18
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Publication No.: US09279288B2Publication Date: 2016-03-08
- Inventor: Thomas G. Duff
- Applicant: Thomas G. Duff
- Agent Michael P. Kochka, Esq.
- Main IPC: A63B27/00
- IPC: A63B27/00 ; E06C1/393
Abstract:
A stepless ladder is provided that may comprise a frame adapted to support the weight of a user, a track attached to a portion of the frame, an escalating member attached to the track, the escalating member for supporting the weight of the user, and an escalating means adapted to raise and lower the escalating member along the track.
Public/Granted literature
- US20140166399A1 STEPLESS LADDER ASSEMBLY AND METHODS OF UTILIZING SAME Public/Granted day:2014-06-19
Information query
