Reversible-returnable envelope blank

Details Reversible-returnable envelope blank Reversible-returnable envelope blank

1993-03-18

1995-03-28

Weaver, Sue A.

Envelopes, wrappers, and paperboard boxes

Envelope

Blanks

229306, 229 805, B65D 2706, B65D 2716

Patent

active

054009545

ABSTRACT:
A reversible and returnable envelope blank of generally cross-shape wherein opposed flaps have non-permanent reusable releasable low-tack pressure-sensitive adhesive at selected places thereon to allow the blank to be folded securely into an envelope by the sender with no adhesive exposed and after unfolding by the receiver reversed and refolded securely into a new envelope still with no adhesive exposed.

REFERENCES:
patent: 895520 (1908-08-01), Virkus
patent: 2332751 (1943-10-01), Powell
patent: 2588950 (1952-03-01), Woolsey
patent: 2829818 (1958-04-01), Alsop
patent: 4210250 (1980-07-01), Yale
patent: 4669652 (1987-06-01), Seguin
patent: 4715531 (1987-12-01), Stewart et al.
patent: 4917287 (1990-04-01), Watson

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