Mailer

Details Mailer Mailer

1990-02-09

1991-01-01

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Wrapper

Letter sheets

229 71, 229 72, 229 73, B65D 2710, B65D 2734

Patent

active

049812513

ABSTRACT:
An envelope comprising a sheet of paper or the like which is folded along one foldine and then folded along a second foldline perpendicular to the first line to provide an envelope with an address viewable through a window but wherein an insert in the envelope cannot move to and obscure the view of the address through the window. One embodiment includes a return envelope made up of a portion of the aforesaid sheet and a second sheet which overlies said portion of the first sheet. Another embodiment provides a mailer without a viewing window and which is formed from a single ply foldable about orthogonally related foldlines and heat sealable along its edges to form a four-ply mailer.

REFERENCES:
patent: 3428237 (1969-02-01), Dowen
patent: 3606138 (1971-09-01), Allison
patent: 4102489 (1978-07-01), Lucas
patent: 4148430 (1979-04-01), Drake
patent: 4199630 (1980-04-01), Consiglio
patent: 4239114 (1980-12-01), Denay
patent: 4375868 (1983-03-01), Slotar et al.
patent: 4575121 (1986-03-01), Conti
patent: 4598860 (1986-07-01), Pennock

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