Mailing and return envelope

Claim 1

In a combination including a standard prepunched data processing card and a mailing and return envelope wherein said envelope includes a main panel with length and width, a first end and an opposite end with an address window disposed therebetween; a triangular shaped first end panel integrally connected to said main panel along a first crease line and lying flat against said main panel on one side thereof; a triangular shaped second end panel integrally connected to said main panel along a second crease line and lying flat against said main panel on said one side; a side panel extending across said length being integrally connected to said main panel and folded along a third crease line perpendicularly arranged with respect to said first crease line And said seond crease line, said side panel positioned outwardly of said first end panel and said second end panel and being sized to overlap said first end panel and said second end panel and being secured thereto by adhesive; a flap extending along said length and being integrally connected to said main panel and foleded along a fourth crease line parallel to said third crease line, said flap being sized such when folded along said fourth crease line will overlap said side panel, said first end panel and said second end panel, said flap having an interior surface with adhesive thereon to adhesively secure said flap to said side panel, said first end panel and said second end panel, wherein the improvement comprises: first perforated straight line extending across said first end panel and parallel with said first crease line; a second perforated straight line extending across said flap; a third perforated straight line extending across said main panel; a fourth perforated straight line extending across said side panel, said fourth perforated line is parallel with said first perforated line, said second perforated line and said third perforated line with aid first, second, third and fourth perforated lines positioned the same distance from said first crease line allowing said envelope to be torn across said width in a straight line to remove the contents of the envelope; a fifth perforated straight line extending across said flap; a sixth perforated straight line extending across said main panel and positioned between said third perforated line and said window; a seventh perforated straight line extending across said side panel and parallel with said first, fifth and sixth perforated lines; said fifth, sixth and seventh perforated lines are positioned the same distance from said first crease line allowing said envelope to be torn across said width in a second straight line into a first piece containing said window, said main panel has an interior surface with adhesives thereon adjacent said fifth perforated line and between said window and said fifth perforated line allowing said first piece to be resealed by sealing said main panel to said flap, said side panel and said second end panel adjacent to said fifth perforated line subsequent to the tearing thereof, said adhesive on said interior surface of said main panel adhesively secures said main panel to said second end panel, said flap and said side panel; said data card has at length and width sized with respect to the length and width of said envelope such that relative motion between said envelope and said card is prevented when said card is positioned in said envelope and said envelope is sealed and untorn.