Granted Patent
Utility
US 5,323,068 · App. 07/977,812
Low power low temperature ECL output driver circuit
Inventor:
Oscar W. Freitas
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Nov 17, 1992
Inventor
Oscar W. Freitas
Assignee (at issue)
NATIONAL SEMICONDUCTOR 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.