Granted Patent
Utility
US 5,315,215 · App. 08/053,141
High-voltage switching circuit
Inventor:
Ronald A. Lesea
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Apr 27, 1993
Inventor
Ronald A. Lesea
Assignee (at issue)
Metcal, Inc.
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.