Canes, sticks, crutches, and walking aids > Tips > Exchangeable (e.g., conventional to spiked) > Relatively movable spiked and conventional elements > Spiked element housed within conventional elements > Patents

Browse by:

Browse by Category: Main > Clothing, Fashion & Accessories

Class Information
Number: 135/81
Name: Tent, canopy, umbrella, or cane > Canes, sticks, crutches, and walking aids > Tips > Exchangeable (e.g., conventional to spiked) > Relatively movable spiked and conventional elements > Spiked element housed within conventional elements
Description: Tips wherein the spiked element is housed within the conventional element when not in the ground engaging position.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7377551	Collapsible snowboard pole	May. 27, 2008
5711335	Medical walker foot with collapsible tip	Jan. 27, 1998
5433234	Supportive device for walking	Jul. 18, 1995
5056546	Non-slip walking assist device	Oct. 15, 1991
4977914	Slip resistent apparatus for canes, crutches and walkers	Dec. 18, 1990
4411284	Walking aid tip assembly	Oct. 25, 1983
4364405	Crutch containing a retractable metal point	Dec. 21, 1982