Patents Assigned to Sunoco Development, Inc.
  • Overcap with cutting ring for rigid paper cans
    Patent number: 9796513
    Abstract: A novel closure for a container is provided. The closure comprises an overcap and a built in blade ring for making a circumferential cut in the container body so the top portion of the body can be removed to expose the container contents.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: October 24, 2017
    Assignee: Sunoco Development, Inc.
    Inventors: Kurt Allen Ziegenfelder, Lawrence R. Carpenter