EP 0268410 B1 19901024 - RETURN ENVELOPE SEALING FLAP CONSTRUCTION
Title (en)
RETURN ENVELOPE SEALING FLAP CONSTRUCTION
Publication
Application
Priority
US 93105986 A 19861117
Abstract (en)
[origin: EP0268410A2] An envelope construction includes an outer envelope 14 and a return envelope 22 contained therein. The return envelope 22 has a front sheet and a back sheet, both sheets being provided with marginal edges bonded together except along one edge. The front sheet extends beyond the back sheet at this one edge and has a closure flap 30 provided with an adhesive strip 34 for sealing the return envelope. First and second insert sheets, 18,20, in the nature of a bill and a copy thereof, are arranged inside the outer envelope 14 and are juxtaposed over the back sheet of the return envelope 22. One insert sheet includes an end strip 24 provided with a release agent 28 on its back side which overlies and protects the adhesive strip 34 provided on the closure flap 30 for the front sheet of the return envelope.
IPC 1-7
IPC 8 full level
B65D 27/06 (2006.01)
CPC (source: EP)
B65D 27/06 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL
DOCDB simple family (publication)
EP 0268410 A2 19880525; EP 0268410 A3 19890531; EP 0268410 B1 19901024; AT E57664 T1 19901115; BR 8706158 A 19880621; CA 1305454 C 19920721; DE 3765752 D1 19901129; ES 2018272 B3 19910401
DOCDB simple family (application)
EP 87309824 A 19871106; AT 87309824 T 19871106; BR 8706158 A 19871116; CA 551232 A 19871106; DE 3765752 T 19871106; ES 87309824 T 19871106