Patents by Inventor Joseph Voytko

Joseph Voytko 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).

  • Return mail container
    Patent number: 4046311
    Abstract: The return mail container of the present invention is formed from a one-piece blank of paperboard or the like and comprises a mailing address flap and a return address flap each of which has an integral locking tab attached to a free end thereof and a locking tab receiving slot located along the opposed end edge thereof. The container is used for mailing by folding the mailing address flap over the return address flap and inserting the locking tab attached thereto into the tab receiving slot in the return address flap. For returning, the return address flap is folded over the mailing address flap and the locking tab attached thereto is inserted into the tab receiving slot in the mailing address flap.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: September 6, 1977
    Assignee: Westvaco Corporation
    Inventor: Joseph Voytko