Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Combined and convertible
Reexamination Certificate
2008-07-15
2008-07-15
Dunn, David R (Department: 3636)
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Combined and convertible
C135S065000, C135S077000, C135S084000
Reexamination Certificate
active
07398791
ABSTRACT:
A walking aid device for assisting a user to walk by presenting a true 3-D obstacle that is automatically activated during normal use of a cane or walking support, to which the device is attached proximal to the floor end, and during use when in an extended position is non-parallel to the floor surface, is perceived by the user to be an obstacle over which the foot on the same side of the user's body must step. A method of use providing for attaching the device to the cane or walking support and using it in a cycle that produces a walking-type motion for the user.
REFERENCES:
patent: 6055997 (2000-05-01), Greenstadt et al.
patent: 6330888 (2001-12-01), Aravantinos et al.
patent: 6378540 (2002-04-01), Iwasa
patent: 4316284 (1994-11-01), None
Laser Cane advertisement from www.upstep.com; pp. 1 and 2, Instep Mobility Products Corp.
Dunn David R
Jackson Danielle N
Triangle Patents, PLLC
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