Envelopes – wrappers – and paperboard boxes – Envelope – Compartment
Patent
1989-04-04
1990-02-13
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Envelope
Compartment
206610, 206629, B65D 2706, B65D 2738
Patent
active
048999261
ABSTRACT:
A two way mailer is formed from a single blank of sheet material, and has separably interconnected forwarding and return envelopes sharing a common rear panel. The return envelope is separable from the forwarding envelope along perforated lines located exclusively or substantially exclusively outside of the front panel of the forwarding envelope. Vulnerable segments of the perforated lines are securely overlapped by the front closure flap of the forwarding envelope.
REFERENCES:
patent: 886449 (1908-05-01), West
patent: 2673680 (1954-03-01), Deutschmeister
patent: 2686005 (1954-08-01), Hyman
patent: 2872099 (1959-02-01), Prial
patent: 2964233 (1960-12-01), McFarland
patent: 3086695 (1963-04-01), Lillibridge
patent: 3113716 (1963-12-01), Howard
patent: 3802618 (1974-04-01), Wiessner
patent: 3908892 (1975-09-01), Pelzer
patent: 4382539 (1983-05-01), Kronman
Marcus Stephen
Sheppard Envelope Company
Stemann Kathryn M.
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