Envelope

Details Envelope Envelope

1990-12-26

1992-03-03

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Envelope

Including remailing means

B65D 2706, B65D 2734

Patent

active

050925156

ABSTRACT:
An envelope comprises a contents-receiving body portion and first and second closure flaps. The second closure flap is folded into the body portion, and the first closure flap is foldable about a fold line to close the body portion with the second closure flap accommodated therein. The envelope further comprises two perforated lines respectively disposed one on either side of the fold line and being substantially parallel to and equally spaced from the fold line. The body portion of the envelope is openable by tearing along the perforated lines, and the envelope is re-usable by lifting the second closure flap out of the body portion. As an alternative, one of the perforated lines may comprise a line partially perforated along each side of a central opening or slit.

REFERENCES:
patent: 769536 (1904-09-01), Dixon
patent: 1064302 (1913-06-01), Donohue
patent: 1142349 (1915-06-01), Merrill
patent: 1200735 (1916-10-01), Klein
patent: 1575769 (1926-03-01), Kaye
patent: 1717698 (1929-06-01), Lawhorn
patent: 1953192 (1934-04-01), Rossiter
patent: 4382539 (1983-05-01), Kronman
patent: 4730768 (1988-03-01), Gendron

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