Granted Patent
Utility
US 5,631,194 · App. 08/544,075
Heavy metal fluoride glass containing indium trifluoride
Inventors:
Annapoorna Akella, Elizabeth A. Downing, Lubos J. B. Vacha
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Oct 17, 1995
Inventors
Annapoorna Akella
Elizabeth A. Downing
Lubos J. B. Vacha
Assignee (at issue)
Galileo Group, 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.