Folded envelopes, unitary blanks for forming folded envelopes an

Details Folded envelopes, unitary blanks for forming folded envelopes an Folded envelopes, unitary blanks for forming folded envelopes an

1994-01-26

1997-05-06

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Envelope

Blanks

229 82, B65D 2714

Patent

active

056262817

ABSTRACT:
An envelope is formed from a scored blank. The blank is folded to form the envelope and comprises a sheet with score lines forming the boundary of a central portion which comprises a front of the envelope. A closure flap is hingedly connected to the remainder of the envelope along one of the score lines. A safety flap, also connected to the envelope along one of the score lines, is under the closure flap.

REFERENCES:
patent: 179351 (1876-06-01), Rogers
patent: 592444 (1897-10-01), Rathjen, Jr.
patent: 602411 (1898-04-01), Sigesmond
patent: 717279 (1902-12-01), Rittenhouse
patent: 982594 (1911-01-01), Griffin
patent: 1196245 (1916-08-01), Knurck
patent: 2051711 (1936-08-01), Heywood
patent: 2664896 (1954-01-01), Reineman
patent: 2770412 (1956-11-01), Ribacoff
patent: 3558040 (1971-01-01), Krueger
patent: 4180168 (1979-12-01), Hiersteiner

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