Granted Patent
Utility
US 4,392,708 · App. 06/174,788
Electrical jack
Inventors:
James R. Bailey, Kurt Lutzenberger
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Aug 4, 1980
Inventors
James R. Bailey
Kurt Lutzenberger
Assignee (at issue)
Switchcraft, 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.