Granted Patent
Utility
US 4,117,924 · App. 05/808,436
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Inventor:
Lawrence J. Growney
Patented Case
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Granted: Oct 3, 1978
Filed: Jun 20, 1977
Inventor
Lawrence J. Growney
Assignee (at issue)
Federal Paper Board Co., 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.