Fold-over mailer with side-open return envelope with slittable e

Details Fold-over mailer with side-open return envelope with slittable e Fold-over mailer with side-open return envelope with slittable e

1988-08-22

1989-06-20

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Envelope

Compartment

229 69, 206610, B65D 2706, B65D 2710, B65D 2734

Patent

active

048403067

ABSTRACT:
The mailer includes a sheet folded medially to form two plies secured one to another about their marginal edges with an intermediate ply secured about three of its four edges to one of the plies. The remaining edge of the intermediate ply forms an opening for the return envelope defined by the intermediate ply and the one ply. To enable the edge of the return envelope to be slit by automatic mail opening equipment, the intermediate ply is reversely folded along the one edge and adhesively secured to the one ply along the flap. This enables a slit to be formed very close to the edge of the return envelope whereby the return envelope may be opened without interference from the glue line securing the intermediate and one plies one to the other.

REFERENCES:
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patent: 4638940 (1987-01-01), Skokos et al.
patent: 4709850 (1987-12-01), Wagner
patent: 4756468 (1988-07-01), Jenkins

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