Granted Patent
Utility
US 4,447,741 · App. 06/424,087
Base drive circuit for power transistors
Inventor:
Anastasios Moschopoulos
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Sep 27, 1982
Inventor
Anastasios Moschopoulos
Assignee (at issue)
Nortel Networks Limited
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.