Granted Patent
Utility
US 4,400,660 · App. 06/304,753
Wide bandwidth high voltage regulator and modulator
Inventor:
Martin Schaefer
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Sep 23, 1981
Inventor
Martin Schaefer
Assignee (at issue)
Sperry Corp.
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.