Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1989-07-26
1990-04-17
Elkins, Gary
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229 40, 229922, B65D 524
Patent
active
049172913
ABSTRACT:
A cardboard blank that is die-cut and scored to define, when the blank is erected, a unitary box having bottom, side and end walls, as well as interlockable triangular side and end flaps providing a closed cover.
REFERENCES:
patent: 886058 (1908-04-01), Hollett
patent: 1112559 (1914-10-01), Reilly
patent: 1440233 (1922-12-01), Noel
patent: 1760106 (1930-05-01), Beach
patent: 2792167 (1957-05-01), Sparks
patent: 2987237 (1961-06-01), Bemiss et al.
patent: 3027063 (1962-03-01), Zastrow
Nomura Kuniaki
Saiki Shinzo
Ebert Michael
Elkins Gary
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