Patents by Inventor Joseph John Difiglio

Joseph John Difiglio 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).

  • Patent number: 3994412
    Abstract: An easy tear-open or breakaway port for a container wherein the breakaway line is provided by a preweakened portion having a reduced wall section with the width varying in a uniform and progressive manner from a minimum width to a maximum one. The breakaway feature is readily adaptable to plastic containers and can be utilized in conjunction with a handle or gripping member to facilitate the tearing along the preweakened portion.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: November 30, 1976
    Assignee: Abbott Laboratories
    Inventor: Joseph John Difiglio