Patent ID: 7497367

Claim:
A two-way envelope formed from an envelope blank, wherein said two-way envelope is symmetrical about its center line, and said two-way envelope comprises: a. a front panel comprising a window for the original recipient address and a window for the original return address, wherein said front panel is rectangular in shape and comprises inner and outer surfaces; b. a back panel, comprising inner and outer surfaces, wherein said back panel is of the same dimensions as the front panel; c. said back panel connected to said front panel by a fold line extending along the bottom edges of the front and back panels; d. a resealing return flap, comprising inner and outer surfaces, wherein the resealing return flap has the same dimensions as the front panel; wherein said resealing return flap is connected to the back panel by a fold line extending along the top edge of the back panel and the top edge of the resealing return flap, wherein the resealing return flap is connected to the top of the back panel through the fold line connecting the resealing return flap to the back panel, for an initial mailing, the resealing return flap is attached to the bottom of the back panel using weak adhesive spots permitting easy detachment for a return mailing, and wherein the resealing return flap comprises a resealing return flap window located to overlay the window for the original return address when the two-way envelope is prepared for the return mailing; f. a top sealing flap, wherein the top sealing flap is connected to the top edge of the front panel by a perforated tear line, wherein the perforated tear line extends along the top edge of the front panel, and wherein said top sealing flap covers said resealing return flap window in said initial mailing; g. a first opposed side sealing flap, wherein the first opposed side sealing flap is connected to the front panel by a fold line extending along one of the two sides of the front panel; and h. a second opposed side sealing flap, wherein the second opposed side sealing flap is connected to the front panel by a fold line extending along the remaining one of the two sides of the front panel.