Granted Patent
Utility
US 4,961,051 · App. 07/437,075
Non-actuating relay driver tester
Inventor:
Michael O. Tjebben
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: Nov 14, 1989
Inventor
Michael O. Tjebben
Assignee (at issue)
Alcatel NA, Inc.
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.