Granted Patent
Utility
US 5,287,216 · App. 07/991,001
Fiber amplifier with multiple pumps
Inventors:
Jagannath Chirravuri, Ta-Sheng Wei, William J. Miniscalco
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Dec 16, 1992
Inventors
Jagannath Chirravuri
Ta-Sheng Wei
William J. Miniscalco
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.