Patents by Inventor David B. Shoenfeld

David B. Shoenfeld has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Overnight package
    Patent number: 4570416
    Abstract: An overnight package for delivery of letters. The package consists of a ply of paperboard and a ply of film joined to the paperboard to create a pouch in which an envelope bearing the shipper's address and the recipient's address may be inserted. The pouch has a pressure-sensitive sealing flap to securely enclose the letter within the pouch, thereby forming the shipping package.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: February 18, 1986
    Assignee: Federal Express Corporation
    Inventor: David B. Shoenfeld