Granted Patent
Utility
US 4,572,971 · App. 06/585,477
Tri-state driver circuit for automatic test equipment
Inventor:
R. Warren Necoechea
Patented Case
View Patent ↗
Granted: Feb 25, 1986
Filed: Mar 2, 1984
Inventor
R. Warren Necoechea
Assignee (at issue)
Fairchild Camera & Instrument Corp.
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.