Granted Patent
Utility
US 4,658,341 · App. 06/874,824
Regulated DC power supply
Inventor:
Jimmie D. Felps
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Jun 11, 1986
Inventor
Jimmie D. Felps
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.