Granted Patent
Utility
US 5,959,448 · App. 08/711,705
Optically isolated line voltage sensing circuit
Inventors:
Zbigniew Baranski, John G. Hayes
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Sep 6, 1996
Inventors
Zbigniew Baranski
John G. Hayes
Assignee (at issue)
Automatic Switch Company
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.