Granted Patent
Utility
US 4,747,510 · App. 07/070,218
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Inventor:
Anthony C. Mack
Patented Case
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Granted: May 31, 1988
Filed: Jul 6, 1987
Inventor
Anthony C. Mack
Assignee (at issue)
Fort Howard Cup Corporation
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.