Granted Patent
Utility
US 5,289,480 · App. 08/013,505
Triple-function semiconductor laser amplifier
Inventors:
Kwang-Tsai Koai, Robert Olshansky
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Feb 3, 1993
Inventors
Kwang-Tsai Koai
Robert Olshansky
Assignee (at issue)
GTE Laboratories Incorporated
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.