Granted Patent
Utility
US 5,483,375 · App. 08/355,753
Optical ratio amplifier
Inventor:
David A. B. Miller
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Dec 14, 1994
Inventor
David A. B. Miller
Assignee (at issue)
AT&T 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.