Granted Patent
Utility
US 3,976,940 · App. 05/552,910
Testing circuit
Inventors:
Yuk Bun Chau, Willis David Stinson, Jr.
Patented Case
View Patent ↗
Granted: Aug 24, 1976
Filed: Feb 25, 1975
Inventors
Yuk Bun Chau
Willis David Stinson, Jr.
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.