Granted Patent
Utility
US 4,774,450 · App. 07/008,187
Stabilized power-supply circuit connectable with auxiliary electric source without an intermediary blocking diode
Inventor:
Masahiro Kitamura
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Jan 28, 1987
Inventor
Masahiro Kitamura
Assignee (at issue)
NEC CORPORATION
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.