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SPECIALTY ENVELOPE

  • US 3,692,233 A
  • Filed: 05/13/1971
  • Issued: 09/19/1972
  • Est. Priority Date: 05/13/1971
  • Status: Expired due to Term
First Claim
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1. An envelope comprising a base panel of quadrilateral configuration, a sealing flap foldably joined to each edge of said base panel, a main one of said sealing flaps being folded into flat face-to-face relation with said base panel and the remaining sealing flaps being folded into flat face-to-face relation with said main sealing flap, said remaining sealing flaps being coplanar with each other and being smaller in area than said main sealing flap and being configured to form a composite flap wherein an edge potion of each coplanar flap abuts an edge portion of each of the other two coplanar flaps, and means for securing said coplanar flaps to said main flap.

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