Granted Patent
Utility
US 4,743,833 · App. 07/034,431
Voltage regulator
Inventor:
William A. Johnson
Patented Case
View Patent ↗
Granted: May 10, 1988
Filed: Apr 3, 1987
Inventor
William A. Johnson
Assignee (at issue)
CROSS TECH, LLC
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.