Invention Grant
- Patent Title: Roll-away staircase
- Patent Title (中): 折叠楼梯
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Application No.: US12788884Application Date: 2010-05-27
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Publication No.: US08371077B2Publication Date: 2013-02-12
- Inventor: Danielle Delhomme
- Applicant: Danielle Delhomme
- Agent Megan E. Lyman
- Main IPC: E04F11/00
- IPC: E04F11/00
Abstract:
This invention relates generally to a staircase that can roll to an upright position when not in use and considers safety standards. More particularly, the invention is directed to a staircase that can be used where space is limited as the staircase's footprint can be minimized when not in use.
Public/Granted literature
- US20110289868A1 Roll-Away Staircase Public/Granted day:2011-12-01
Information query
