Envelopes – wrappers – and paperboard boxes – Envelope – Closures
Patent
1994-06-27
1995-12-26
Pascua, Jes F.
Envelopes, wrappers, and paperboard boxes
Envelope
Closures
229 71, 383 5, B65D 2730
Patent
active
054780101
ABSTRACT:
The mailing envelope includes a front sheet portion and a back sheet portion. A folded back flap adjoins the front sheet portion which projects into the interstice between the front and the back sheet portion. The mailing envelope is closed by an adhesive material strip which joins the back sheet portion to the folded back flap. The mailing envelope includes, furthermore, lateral folded over flaps by which the front sheet portion of the envelope is bonded to the back sheet portion. A portion of a bonding material is placed at the free edge of each flap which portion projects visibly at the free edge of the flap and has a color which visibly contracts the color of the sheet portions. A further correspondingly colored adhesive material portion is located at the bottom of the fold area between the front sheet portion and the folded over flaps. If the mailing envelope is severed non-authorized at the adhesive material portions in order to steal its contents and is closed thereafter the unauthorized tampering is usually shown by fault areas at the corresponding portions of the adhesive material. An identification marking is printed onto the folded back flap which marking is repeated on an extension strip connected releasably via a perforation to the mailing envelope.
REFERENCES:
patent: 4483018 (1984-11-01), Whelan
patent: 5108194 (1992-04-01), Raden
Pascua Jes F.
VA+ST Group Sicherheit AG
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