Granted Patent
Utility
US 4,962,995 · App. 07/367,393
Glasses for high efficiency erbium (3+) optical fiber lasers, amplifiers, and superluminescent sources
Inventors:
Leonard J. Andrews, William J. Miniscalco
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Jun 16, 1989
Inventors
Leonard J. Andrews
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.