Granted Patent
Utility
US 5,131,588 · App. 07/775,750
Panel interlock
Inventor:
James R. Oliff
Patented Case
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Granted: Jul 21, 1992
Filed: Oct 15, 1991
Inventor
James R. Oliff
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.