Appeal No. 2006-2280 Page 3
Application No. 10/244,011
walking surface, the tube having a length selected to be substantially
less than that of the crutch strut or cane shaft.
23. In combination with a crutch having at least one
longitudinally extending crutch strut with a bottom end for engaging
a walking surface and a top end with at least one under arm support
extending laterally from the crutch strut, or in combination with a
cane with a cane shaft having a bottom end for engaging a walking
surface and a top end with a handle extending laterally from the cane
shaft:
an attachment on the crutch strut or cane shaft, the attachment
having an exterior consisting essentially of an exterior surface for
frictionally engaging an edge or curved surface to keep the crutch or
cane supported with the bottom end resting on a walking surface, the
attachment having a length extending above the center of gravity of
the strut or shaft when the strut or shaft is vertically oriented.
The examiner relies upon the following as evidence of unpatentability:
Carpenter 4,884,730 Dec. 05, 1989
Crusor 6,000,414 Dec. 14, 1999
Finegan 6,036,607 Mar. 14, 2000
Shrader 6,410,848 Jun. 24, 2002
Filed: Apr. 24, 2000
The following rejections are before us for review.
1. Claims 1-14 stand rejected under 35 U.S.C. § 112, second paragraph, for
failing to particularly point out and distinctly claim the invention.
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