Granted Patent
Utility
US 4,674,020 · App. 06/808,575
Power supply having dual ramp control circuit
Inventor:
Lorimer K. Hill
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Dec 13, 1985
Inventor
Lorimer K. Hill
Assignee (at issue)
SILICONIX INCORPORATED
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.