Envelopes – wrappers – and paperboard boxes – Paperboard box – End structure
Patent
1980-08-07
1983-01-18
Ross, Herbert F.
Envelopes, wrappers, and paperboard boxes
Paperboard box
End structure
229 15B, 220 74, B65D 808, B65D 328
Patent
active
043688411
ABSTRACT:
A container comprising a generally circular or frustoconical tubular paperboard sidewall having a closed bottom wherein the upper end of said sidewall has been folded outwardly and downwardly then upwardly back upon itself so as to form a rim of three thicknesses of said sidewall paperboard surrounding the upper end of the container.
REFERENCES:
patent: 1056675 (1913-03-01), Hill
patent: 2158118 (1939-05-01), Gullion
patent: 2661137 (1953-12-01), Reid
patent: 2772043 (1956-11-01), Foord
patent: 2801946 (1957-08-01), Evenblij
patent: 2979224 (1961-04-01), Henchert
patent: 3001666 (1961-09-01), Caproni
Phillips Petroleum Company
Ross Herbert F.
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