Granted Patent
Utility
US 6,778,733 · App. 09/883,081
Lithographic fabrication of phase mask for fiber Bragg gratings
Inventors:
Joshua E. Rothenberg, Yunlong Sheng
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jun 15, 2001
Inventors
Joshua E. Rothenberg
Yunlong Sheng
Assignee (at issue)
TERAXION 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.