Granted Patent
Utility
US 5,881,186 · App. 08/898,456
Near-ultra-violet formation of refractive-index grating using phase mask
Inventor:
Dmitry Starodubov
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Jul 24, 1997
Inventor
Dmitry Starodubov
Assignee (at issue)
D-Star Technologies, 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.