Stair chair

Details Stair chair Stair chair

2006-04-18

2006-04-18

Jackson, Marcus A. (Department: 2911)

Transportation

Perambulator, invalid chair, or stretcher

Walker

Design Patent

active

D0519064

CLAIM:
The ornamental design for a stair chair, as shown and described.

REFERENCES:
patent: 2699557 (1955-01-01), Gravatt
patent: 3122758 (1964-03-01), Ferneau
patent: 5224717 (1993-07-01), Lowen
patent: 5224721 (1993-07-01), Santmann
patent: 5338048 (1994-08-01), Medina
patent: D369578 (1996-05-01), Andolfi
patent: D409120 (1999-05-01), Aughpin
patent: 6435538 (2002-08-01), Ellis et al.
patent: 6561524 (2003-05-01), Medina
patent: 6644675 (2003-11-01), Ellis et al.
patent: 6648343 (2003-11-01), Way et al.
patent: 2003/0141677 (2003-07-01), Medina

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