Envelopes – wrappers – and paperboard boxes – Envelope – Series
Patent
1975-04-01
1977-06-28
Garbe, Stephen P.
Envelopes, wrappers, and paperboard boxes
Envelope
Series
282 115A, B65D 2710
Patent
active
040320650
ABSTRACT:
A file folder web of indeterminate length formed of a series of interconnected individual file folders each having a length and a width, has upper and lower sheets of indeterminate length arranged face-to-face and constituting, respectively, a front and a rear cover wall of each individual file folder; main weakened lines provided in the sheets and extending along and through the length dimension of each file folder; a strip of adhesive extending between the sheets along the length of each file folder adjacent the main weakened line along one longitudinal edge of each file folder for bonding together the sheets.
REFERENCES:
patent: 1611585 (1926-12-01), Forman
patent: 1922296 (1933-08-01), Johnson
patent: 3208662 (1965-09-01), Johnson
patent: 3733770 (1973-05-01), Erickson
patent: 3786984 (1974-01-01), Malenge
patent: 3817445 (1974-06-01), Greason
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