Granted Patent
Utility
US 4,936,459 · App. 07/369,534
Interleaved spiral wrapping of foam product and stretch film for packaging carbonless paper rolls
Inventors:
Roger J. Mushinski, Charles E. Lewis, Lawrence J. Casey
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Jun 20, 1989
Inventors
Roger J. Mushinski
Charles E. Lewis
Lawrence J. Casey
Assignee (at issue)
Appleton Papers Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.