Granted Patent
Utility
US 4,477,345 · App. 06/457,010
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Inventor:
Emil Szlaga
Patented Case
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Granted: Oct 16, 1984
Filed: Jan 10, 1983
Inventor
Emil Szlaga
Assignee (at issue)
Stant 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.