Granted Patent
Utility
US 6,393,179 · App. 09/369,343
Optical coupling system
Inventors:
Yihao Cheng, Gary S. Duck
Patented Case
View Patent ↗
Granted: May 21, 2002
Filed: Aug 6, 1999
Inventors
Yihao Cheng
Gary S. Duck
Assignee (at issue)
JDS Fitel 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.