Fire escape – ladder – or scaffold – Scaffold external of shaft
Reexamination Certificate
2008-11-07
2011-12-13
Mitchell, Katherine (Department: 3634)
Fire escape, ladder, or scaffold
Scaffold external of shaft
C248S218400
Reexamination Certificate
active
08074770
ABSTRACT:
A portable tree stand comprising a seat having a bottom surface, the bottom surface having a first sidewall and a second sidewall at least partially defining a cavity, a mount extending from the cavity for engagement with a tree, and wherein the mount is contained completely within the cavity when not in use.
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patent: 6343834 (2002-02-01), Wurmlinger
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patent: 7174995 (2007-02-01), Alexander
patent: RE39725 (2007-07-01), Muhich
patent: 7377361 (2008-05-01), Tschida
Smith Michael S.
Worobey Peter J.
Cahn Daniel
Mitchell Katherine
Sand & Sebolt
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