Granted Patent
Utility
US 4,747,485 · App. 07/004,509
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Inventor:
Jean Chaussadas
Patented Case
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Granted: May 31, 1988
Filed: Jan 20, 1987
Inventor
Jean Chaussadas
Assignee (at issue)
The Mead 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.