Granted Patent
Utility
US 4,731,655 · App. 06/900,867
Protection circuit for improper line voltage
Inventors:
Wayne Lee, Shin T. Tzuo
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Aug 27, 1986
Inventors
Wayne Lee
Shin T. Tzuo
Assignee (at issue)
RCA 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.