Granted Patent
Utility
US 5,128,553 · App. 07/542,322
Lateral PNP turn-off drive circuit
Inventor:
Carl T. Nelson
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Jun 22, 1990
Inventor
Carl T. Nelson
Assignee (at issue)
Linear Technology Holding 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.