Special receptacle or package – Structural features for vertical stacking – i.e. – similar... – Having vertical projecting element or recess for interlock
Reexamination Certificate
2008-03-04
2008-03-04
Stashick, Anthony D. (Department: 3781)
Special receptacle or package
Structural features for vertical stacking, i.e., similar...
Having vertical projecting element or recess for interlock
C229S125290, C229S915000
Reexamination Certificate
active
11603337
ABSTRACT:
A tongue shaped friction lock is integrally formed in a dust cover or a bottom panel of an open-topped container and positioned to capture the stacking tabs of an adjacent open-topped container. The friction lock provides a small opening through which a stacking tab may be inserted, while at the same time pushing up a locking flap, which pivots up and frictionally engages the stacking tab. A strip of reinforcing tape is embedded within the dust cover and allows one to remove and reuse the dust cover without tearing the tongue lock or the surrounding portions of the dust cover.
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Barnes, III Thomas W.
Grosso Harry A
International Paper Company
Lambert Dennis H.
Stashick Anthony D.
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