Granted Patent
Utility
US 4,472,010 · App. 06/462,461
Twist-inhibiting appliance for connecting a cable of a telephone set or the like
Inventor:
Nicholas G. Parnello
Patented Case
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Granted: Sep 18, 1984
Filed: Jan 31, 1983
Inventor
Nicholas G. Parnello
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.