Granted Patent
Utility
US 4,856,091 · App. 07/043,073
Radiation-coupled daisy chain
Inventor:
John L. Taska
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Apr 27, 1987
Inventor
John L. Taska
Assignees (at issue)
American Telephone and Telegraph, Co.
AT&T Information Systems 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.