Granted Patent
Utility
US 4,663,502 · App. 06/817,588
Auxiliary contact
Inventors:
Hugh Kane, Walt Landow
Patented Case
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Granted: May 5, 1987
Filed: Jan 10, 1986
Inventors
Hugh Kane
Walt Landow
Assignee (at issue)
Joslyn 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.