Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Reexamination Certificate
2008-08-20
2010-11-16
Elkins, Gary E (Department: 3782)
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
C229S157000
Reexamination Certificate
active
07832623
ABSTRACT:
A carton particularly well suited for storing packaged dry goods is designed such that the closure flaps that close a top opening of the carton do not obstruct the loading of goods into the carton through the top opening when the carton is placed on its side. The carton includes a front and rear panel that bow slightly outwardly so as to apply tension to the closure flaps connected to the front and rear panel. This tension prevents the flaps from falling into the opening during loading of the carton. This tension is created by vertical score lines in the front and rear panels as well as their associated closure flaps. In this regard, the mechanism to hold the closure flaps open is integrally formed with the carton.
REFERENCES:
patent: 2415869 (1947-02-01), Coleman
patent: 2961140 (1960-11-01), Holmes
patent: 3078989 (1963-02-01), Curran et al.
patent: 3166235 (1965-01-01), Schroeder
patent: 4279379 (1981-07-01), Lohrbach et al.
patent: 4437570 (1984-03-01), Sorenson
patent: 5318220 (1994-06-01), Gagliardo
patent: 5738272 (1998-04-01), Anchor et al.
patent: 6119928 (2000-09-01), Lasson et al.
Boyle Fredrickson , S.C.
Elkins Gary E
Green Bay Packaging, Inc
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