Patents Assigned to Double Envelope Corporation
  • Multiple mailing folder
    Patent number: 4044942
    Abstract: An advertising multiple use mailing folder or mailer including an envelope which may be twice used in furthering the completion of a business transaction.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: August 30, 1977
    Assignee: Double Envelope Corporation
    Inventor: Jack Edward Sherwood