Granted Patent
Utility
US 4,123,696 · App. 05/641,075
Signal handling apparatus
Inventor:
Everett O. Olsen
Patented Case
View Patent ↗
Granted: Oct 31, 1978
Filed: Dec 15, 1975
Inventor
Everett O. Olsen
Assignee (at issue)
Fox Boro Company
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.