Granted Patent
Utility
US 4,334,188 · App. 06/118,943
Voltage detector using an oscillator and comparator means
Inventor:
Carl K. Dudley
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Feb 6, 1980
Inventor
Carl K. Dudley
Assignee (at issue)
Eltra 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.