Granted Patent
Utility
US 5,369,648 · App. 07/789,553
Built-in self-test circuit
Inventor:
Robert Nelson
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Nov 8, 1991
Inventor
Robert Nelson
Assignee (at issue)
NCR 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.